Wednesday

April 16, 2014

April 16, 2014

Number of results: 96,878

**Solving trig functions! urgent please help!**

1.2sinxtanx + tanx-2sinx-1=0 2.6tan^2x-4sin^2x=1 Both functions is for 0<x<2pi thank you!
*Tuesday, December 20, 2011 at 11:57pm by Sally*

**Solving trig functions! urgent please help!**

6 (sin^2/cos^2) -4 sin^2 - 1 = 0 6 s^2 - 4 s^2c^2 - c^2 = 0 6 s^2 -4s^2(1-s^2) -(1-s^2) = 0 6s^2 -4s^2 +4s^4 +s^2 - 1 = 0 4 s^4 +3 s^2 -1 = 0 (4s^2-1)(s^2+1) = 0 sin^2x = 1/4 or sin^2x = -1 (imaginary root) sin x = +1/2 or sin x = -1/2 You can take it from there.
*Tuesday, December 20, 2011 at 11:57pm by Damon*

**Solving trig functions! urgent please help!**

2 sin^2x/cosx + sinx/cosx - 2 sinx - 1 = 0 2 sin^2x + sinx -2 sinxcosx - cosx = 0 2sinx(sinx-cosx) = -(sinx-cosx) sinx = -1/2 x = 210 degrees(7pi/6) or 330degrees(11pi/6)
*Tuesday, December 20, 2011 at 11:57pm by Damon*

**trig**

Solving Trig Functions: How Do You Solve For Sin 7.5 Using Half-Angle and Double-Angle Identities?
*Wednesday, September 22, 2010 at 10:23pm by Spy[c]*

**Math Urgent help please**

As always, draw a diagram. Now, recalling your trig functions, it is easy to see that h/(15+5) = tan 50 now, just solve for h
*Monday, February 10, 2014 at 10:50am by Steve*

**Solving trig functions! urgent please help!**

In #1, Damon lost 2 answers by just dropping the (sinx-cosx) from 2sinx(sinx-cosx) = -(sinx-cosx) 2sinx(sinx-cosx) + (sinx-cosx)= 0 (sinx-cosx)(2sinx + 1) = 0 sinx = -1/2 etc, (see above) or sinx - cosx = 0 sinx = cosx sinx/cosx =1 tanx = 1 x = 45 or 225 (π/4 or 5π...
*Tuesday, December 20, 2011 at 11:57pm by Reiny*

**trig**

How do you solve cos(2arcsin 1/4) using inverse trig. functions??!! PLEASE HELP ME!
*Monday, May 9, 2011 at 11:20am by Tor*

**trig**

I don't know to find the derivative of the following trig functions. Please help. f(x)= cotx h(x)= secx i(x)= cscx
*Thursday, January 19, 2012 at 8:45am by Claire*

**trig**

Subtract 2 pi from 7pi/3. The trig functions of 7 pi/3 will be the same values as the trig functions of pi/3, which is 60 degrees. The cosine of pi/3 is 1/2. That makes the secant 3. The tangent is sqrt3 You should be able to look up or figure out the other funtions of that ...
*Tuesday, January 12, 2010 at 9:50pm by drwls*

**trig**

I don't know to find the derivative of the following trig functions. Please help. f(x)= cotx h(x0= secx i(x)= cscx
*Thursday, January 19, 2012 at 8:45am by Claire*

**Trigonometry**

Try reviewing your trig functions and post an attempt at some of these. We'll be happy to check your work. They're all pretty straightforward applications of the definitions of trig functions and Pythagorean Theorem.
*Monday, March 5, 2012 at 1:06pm by Steve*

**graphing trig functions**

for graphing basic trig functions such as y=2sinx or y=1/3cosx, how do you know what the points are to graph with out using a calculator?
*Friday, May 18, 2012 at 12:31am by bkue*

**Trig**

The next two steps in solving this trig identity question are ??? 1/csctheta x costheta x sintheta x sectheta = sinsqtheta arghhh need help please
*Saturday, December 17, 2011 at 7:43pm by Don*

**urgent urgent algebra**

find the composite function fog f(X) = 1/X-5,g(x)-6/x question 2 find inverse, domain range and asymatotes of each function f(x)=3+e^4-x can some one help me please been stuck on these for 2 days need help solving thank you
*Tuesday, March 19, 2013 at 11:44pm by zachary*

**graphing trig functions**

You can pick as many x points as you want. The more you plot, the easier it is to plot a smopoth and accurate curve. For the y values that go with each x, you need a calculator, a special slide rule or a table of trig functions. Hardly anyone uses tables or slide rules anymore.
*Friday, May 18, 2012 at 12:31am by drwls*

**Math grade 12 Advanced Functions**

3. Using proper grammar 1 point 3. What is the value of x + y? (5 points) Rubrics: 1. Writing the correct equation(s) 1 point 2. Showing steps 1 point 3. Solving for x 1 point 4. Solving for y 1 point 5. Solving for x + y 1 point
*Friday, January 25, 2013 at 11:42am by Anonymous*

**math**

could someone please refresh my memory of the basic trig functions? ex) cos^2 + sin^2 = 1? That is a trig identity. http://www.sosmath.com/trig/Trig5/trig5/trig5.html
*Thursday, April 12, 2007 at 10:18pm by raychael*

**Math- Urgent**

Solving Equations -7+b/15=-6 What does b equal? Please show all work.
*Monday, August 12, 2013 at 8:49pm by j*

**Math- Urgent**

Solving Equations 3=r/16+4 What does r equal? Please show all work.
*Monday, August 12, 2013 at 8:59pm by j*

**Trig (inverse functions)**

I found my mistake, please disregard.
*Monday, April 21, 2008 at 3:16pm by Dennis*

**Trig**

What are we doing? Solving ? or proving it is an identity? BTW, you have to put the x for all the trig functions that is, cosx cotx = cscx - sinx Let's see if it is an identity... LS = cosx (cosx/sinx = cos^2 x/sinx RS = 1/sinx - sinx = (1 - sin^2 x)/sin = cos^2 x/sinx = LS ...
*Tuesday, December 4, 2012 at 11:27pm by Reiny*

**trig**

write a product of two trig functions that equals 1.
*Sunday, November 6, 2011 at 9:38pm by Dani*

**trig**

any calculus text will list the trig functions and their derivatives.
*Thursday, January 19, 2012 at 8:45am by Steve*

**Trig **

csc thea= -2, quadrant 4. what are the six trig functions?
*Monday, May 6, 2013 at 4:17pm by Shay*

**trig**

how do i do this? give the signs of the six trig functions for each angle: 74 degrees?
*Wednesday, December 3, 2008 at 6:59pm by Tay*

**graphing trig functions**

I see the equation of a straight line, not a trig function
*Sunday, May 20, 2012 at 10:15pm by Reiny*

**Trig**

surely you have learned the basic definitions of the trig functions, tan = y/x = 4/3
*Sunday, January 20, 2013 at 5:17pm by Reiny*

**Physics**

Calculus is a branch of mathematics that lets you solve equatiuns that involve the rate of change of functions, or the areas under curves. In the course of solving these equations, often many new functions are introduced.
*Sunday, October 24, 2010 at 10:49pm by drwls*

**trig**

What kind of reflections are the following trig functions? y = 3cos(x-1) y = sin(-3x+3) y = -2sin(x)-4
*Sunday, April 20, 2008 at 10:27pm by Joshua*

**trig**

What kind of reflections are the following trig functions? y = 3cos(x-1) y = sin(-3x+3) y = -2sin(x)-4
*Monday, April 21, 2008 at 12:33am by Joshua*

**trig**

What is the shift along x of the following trig functions? y = (3sinx/2) + 4 y = -2sin(x)-4 y = sin(-3x + 3)
*Monday, April 21, 2008 at 12:34am by Amandeep*

**Trig**

find the exact values of the six trig functions of angle... sin(-315degrees) how do i do this?
*Thursday, September 1, 2011 at 9:16pm by ALISON*

**Trig**

Does anybody know a good website that will hlp me with finding the six trig functions of a point NOT on the unit cricle?
*Wednesday, September 16, 2009 at 7:59pm by Anonymous*

**trig**

use the unit circle to find the exact value for all the trig functions of =2/3.
*Monday, February 1, 2010 at 9:54pm by Anonymous*

**trig**

find the 5 other trig functions if cos(theta) = square root of 2/2 and cotangent is less than 0
*Wednesday, June 9, 2010 at 7:04pm by kelly*

**trig**

Do you mean find the six trig functions (sin, cos, tan, csc, sec, and cot)?
*Wednesday, December 3, 2008 at 6:59pm by Anonymous1*

**Trig**

Let f and g be two invertible functions such that f^-1(x)=5/x+4 and g(x)=4(x-2). Find f(g(5)). Show your steps please so I can see how to do it. Thank you! :)
*Friday, October 12, 2012 at 1:44am by Bailey*

**Pre-Calculus/Trivia**

If x = sin(theta), these equations are identities, expressing other trig functions in terms of sin hey arise from the identity sin^2(theta) + cos^2(theta) = 1 As for real life and calculus, get familiar with the trig functions, and by the time you have mastered the techniques...
*Monday, February 20, 2012 at 9:22pm by Steve*

**trig**

The displacement (in centimeters) of a particle moving back and forth along a straight line is given by the equation of motion s= 2 sin pi t + 3 cos pi t, where t is measured in seconds. (a) Find the average velocity during each time period: (i)[1,2] (ii) [1,1.1] (iii) [1, 1....
*Tuesday, September 23, 2008 at 8:40pm by Sarah*

**Trig**

Did you notice that trig co-functions come in pairs: sine ---cosine secant --- cosecant tangent --- cotangent so csc(4π/11) = ......
*Wednesday, May 11, 2011 at 4:53am by Reiny*

**trig**

works for me. the co-functions are the functions of the complementary angles. So, by definition, tan(π/2-x) = cot(x). Your proof works as well, though.
*Sunday, July 14, 2013 at 8:48pm by Steve*

**sci 241**

could any one PLEASE help me get started on this??? I DO NOT UNDERSTAND IT!!!!!!! any advicer or help PLEASE URGENT Write a 1,400- to 1,750-word paper in APA format outlining your healthy eating plan. Be sure to discuss: o Your current eating habits (as documented in the Food ...
*Saturday, May 30, 2009 at 6:38pm by Brittney......URGENT PLEASE HELP*

**trig**

Given that sin x = - 2/2 and that cos x is negative, find the other functions of x and the value of x. can you explain how this problem can be solved please.
*Sunday, January 30, 2011 at 12:49am by Anonymous*

**Physics**

he graph of the velocity of a mass attached to a horizontal spring on a horizontal frictionless surface as a function of time is shown below. The numerical value of V is 5.48 m/s, and the numerical value of t0 is 8.97 s. a) What is the amplitude of the motion in m? b) What is ...
*Tuesday, November 20, 2012 at 11:47pm by Jalopy*

**Trig**

Find values of all six trig functions if sin(theta)= 4/5 and theta is in the second quadrant.
*Tuesday, August 23, 2011 at 2:47pm by Lucy*

**URGENT LANGUAGE ARTS**

PLEASE THIS IS URGENT VERY URGENT BUT I NEED HELP
*Monday, December 17, 2012 at 9:00pm by Gabby*

**trig**

find the exact values of the six trig functions of theta equals six pi divided by 8
*Monday, October 17, 2011 at 9:01pm by don*

**Trig**

Please explain inverse functions. i.e. find angle if Sin x = 2.3 divided by 8.15. Answer 16.30 degrees. How did they do that??? Tks
*Thursday, December 4, 2008 at 3:50pm by John*

**TRIGONOMETRY**

by test time you need to know the "standard" angles with easy-to-recall trig functions 0,π/6,π/4,π/3,π/2 If you know those angles and their trig ratios, you will recall that tan π/3 = √3 Now, recall the bit about principal values of inverse trig ...
*Saturday, May 18, 2013 at 9:37am by Steve*

**trig**

If cos 0 = - 1/2 and tan 0 > 0, find the quadrant that contains the terminal side of 0, and then find the exact values of the other five trig functions of 0.
*Saturday, May 14, 2011 at 11:40am by shawn*

**Trig**

Well, why not follow that hint sin(-15) = sin(30 - 45) = sin30cos45 - cos30sin45 = .... You should know the trig functions of those special angles.
*Tuesday, September 17, 2013 at 11:23pm by Reiny*

**trig**

how do i find six trig functions for cos(pi over 2-x)=3/5, cos x=4/5?
*Tuesday, October 19, 2010 at 11:28pm by Anonymous*

**algebra/trig**

1.Find the domain f(x)=(x^(2)-9) 2. Find all six trig functions for (-3,4)
*Wednesday, June 8, 2011 at 11:27pm by Mike*

**Trig**

points do not have trig functions. Angles have trig functions. http://id.mind.net/~zona/mmts/trigonometryRealms/TrigFuncPointDef/TrigFuncPointDefinitions.html
*Wednesday, September 16, 2009 at 7:59pm by bobpursley*

**MATH URGENT**

a. Solve a 9 = 20 b. Solve b 9 > 20 c. How is solving the equation in (a) similar to solving the inequality in (b)? d. How are the solutions different? I dont know how to do this i forgot ... could u help (Steve, or Mrs.Sue, or Writeteacher plz help)
*Friday, January 18, 2013 at 5:42pm by Gabby*

**Advance Functions**

Solve: 12+4|6x−1|<4 5−6|x+7|less than or equal to 17 ...can you please explain to me.. i know that it's like solving algebraically but one of them has no solution..
*Saturday, February 16, 2013 at 5:23pm by jc*

**pre calc**

since you are asking about trig functions, it would be logical to assume that you can find the definitions. csc A = 1/sinA if that's difficult, please review your algebra I.
*Thursday, January 12, 2012 at 8:02pm by Steve*

**Math - Trig**

Looks like you need to review the basic trig functions and draw useful diagrams. #1 h/15 = tan 46.48 #2 h/17.2 = tan 73.5
*Wednesday, December 4, 2013 at 12:11am by Steve*

**Trig**

URGENT, Please answer this question: give the value of: Tan(Arctan x+1/x-1+Arctan x-1/x)
*Saturday, June 11, 2011 at 10:21am by Mike*

**trig**

Find the exact values of the other trig functions of theta given sec theta=7 and sin theta is less than 0.
*Sunday, May 8, 2011 at 12:35am by Nick*

**Math Trig**

Find the values of the six trigonometric functions of an angle in standard position if the point with coordinates (12, 5) lies on its terminal side? Please explain how!
*Tuesday, October 16, 2012 at 9:56am by Laytin*

**Math Trig**

Find the values of the six trigonometric functions of an angle in standard position if the point with coordinates (12, 5) lies on its terminal side? Please explain how!
*Tuesday, October 16, 2012 at 9:56am by Laytin*

**trig**

yes, that is what I said. Cot 45 = 1/tan 45 = 1 I also did the other trig functions of 45 because I am sure you will need them.
*Monday, May 19, 2008 at 6:32pm by Damon*

**Quadratic Functions**

I need help solving this equation: y=-2x^+3 And you do need to graph this equation so can someone please help me?
*Monday, April 7, 2008 at 8:10pm by Megan*

**mAth**

surely your class materials include graphs of the six trig functions . . . besides, we can't post pictures here. do a web search on secant trig function and you will find many pictures of the graph
*Monday, January 23, 2012 at 10:17am by Steve*

**math(Please please help!!!)**

Solving log functions 1) log x + log(x-6) = log 7
*Saturday, February 6, 2010 at 8:53am by Hannah*

**Trig Help (URGENT)**

Solve over the indicated interval: 2sin^2x=sqrt2sinx , [-180,180) don't how to get x by itself please help and thank you
*Wednesday, February 22, 2012 at 10:25pm by Anonymous*

**trig**

determine all trig functions of theta using the given info, state the answers correct to the nearest hundredth. cos (theta) = -5/13; tan (theta) < 0
*Saturday, May 14, 2011 at 11:40am by anna*

**trig**

determine all trig functions of theta using the given info, state the answers correct to the nearest hundredth. cos (theta) = -5/13; tan (theta) < 0
*Saturday, May 14, 2011 at 11:40am by anna*

**Math - Solving Trig Equations**

Start by recalling the most important identity. My math teacher calls this "the #1 Identity." sin^2(x) + cos^2(x) = 1 We want to simplify our trig equation by writing everything in terms of sine. Let's solve the #1 Identity for cos^2(x) because we have that in our trig ...
*Wednesday, November 21, 2007 at 6:29pm by Michael*

**GEOGRAPHY (URGENT!!!)**

I NEED HELP!!! this is urgent!!! Human-Environmental Interactions: how did the people in Khartoum modify the environment? how is the people in khartoum being influence by the physical landscape/environment? sorry my grammar sucks i have other questions but i really extremely ...
*Thursday, November 18, 2010 at 7:50pm by NEED HELP URGENT!!!*

**spanish!!...urgent!...please help**

how did the geography influence the migration and exploration of colombia? venezuela? i need websitres for this urgent...please help asap... :(
*Thursday, December 6, 2007 at 6:58pm by maggie*

**CALCULUS! PLEASE HELP URGENT!**

Which of the following functions have a derivative at x=0? I. y= absolute value(x^3-3x^2) II y= square root(x^2+.01)- absolute value (x-1) III y= e^x/cosx
*Thursday, October 8, 2009 at 5:54pm by Mark*

**Statistics**

If Y1 is a continuous random variable with a uniform distribution of (0,1) And Y2 is a continuous random variable with a uniform distribution of (0,Y1) Find the joint distribution density function of the two variables. Obviously, we know the marginal density functions of each ...
*Sunday, November 15, 2009 at 10:28pm by Sean*

**Calculus**

We're learning about different kinds of functions and I don't really understand the difference between rational and algebraic functions. I know that rational functions are functions that are a ratio of two polynomials, and algebraic functions are any functions that can be made...
*Thursday, September 13, 2007 at 11:09am by Kelly*

**Trigonometry**

The reason they come up in trig is that any point in the plane can be located at some distance from the origin, and in some direction, given by an angle θ. All your normal trig functions can be applied to θ.
*Sunday, December 8, 2013 at 10:57pm by Steve*

**Trigonometry**

Use the trig Identities to find the other 5 trig functions. Problem 7.)Tan(90-x)=-3/8 8.)Csc x=-13/5 9.)Cot x=square root of 3 10.)Sin(90-x)=-.4563 11.)Sec(-x)=4 12.)Cos x=-.2351 I need HELP!
*Tuesday, January 5, 2010 at 4:09pm by Jennifer*

**GR.10 CIVICS!!!!!URGENT**

CAN SOMOENE PLEASE GIVE ME A LINK TO A PICTURE THAT HAS TO DO WITH OR IS RELATED TO ABORIGINALS GAINING THE RIGHT TO VOTE IN CANADA(1960).PLEASE! ITS URGENT.THANKS
*Saturday, May 30, 2009 at 6:56pm by LALA*

**Math trig **

Look at your trig functions d/24 = cos 25 height H/24 = sin 25 for the 2nd part, (d+2)^2 + h^2 = 24^2 ladder slid down H-h feet
*Saturday, October 22, 2011 at 2:13pm by Steve*

**trig**

This is not trigonmetry. You may have to do some plotting of G(x). We cannot do the graphing for you. The relative extreme values can be obtained by setting the derivative equal to zero, giving 3 x^2 = 8 and solving for x Please show your work if you need further assistance.
*Wednesday, November 12, 2008 at 11:12pm by drwls*

**Trig**

sin 4x = 2sin(2x)cos(2x) = 2(2sinxcosx)(1 - 2sin^2 x) = 4sinxcosx(1 - 2sin^2 x) this is expressed in terms of trig functions of x.
*Wednesday, February 17, 2010 at 4:46pm by Reiny*

**trig**

Most of these questions can be answered by the definition of the general trigonometric functions: y = a sin A(x-φ) a is the amplitude 2π/A = period φ = phase shift. If you can transform the trigonometric functions into the above form and evaluate the values of a, A...
*Thursday, December 17, 2009 at 12:00pm by MathMate*

**Trig**

please show me again in trig way
*Saturday, May 17, 2008 at 12:40pm by Doni --i didnt get this one can please show me the trig way a little bit more clrealy*

**math(please help urgent)**

1) A y = x/3 line makes an angle of arctan 1/3 with the x axis. That line is in the first quadrant (and also the third quadrant). You have not specified the quadrant. tan theta = 1/3, by definition sin theta = 1/sqrt10 (in the 1st quadrant) cos theta = 3/sqrt10 etc. 2) (a) ...
*Friday, January 15, 2010 at 3:50pm by drwls*

**Math C30**

Solving Equations Containing Circular Functions ... Solve 2cos^2=1
*Wednesday, November 2, 2011 at 1:05am by don*

**math**

Trigonometry is the branch of mathematics that deals with the solution of triangles through the use of the trigonometric functions sine, cosine, tangent and their reciprocals. The trig function values derive from the ratios of the "x" and "y" values of a point on a unit circle...
*Monday, March 3, 2008 at 9:37am by tchrwill*

**math(please help urgent)**

1) Find the values (if possible) of the six trigonometric functions of o if the terminal side of o lies on the given line in the specified quadrant. y=1/3x 2)Evaluate (if possible)the sine, cosine, and tangent of the angles without a calculator. (a) 10pie/3 (b) 17pie/3
*Friday, January 15, 2010 at 3:50pm by Hannah*

**Trigonometry Urgent!**

I am writing a paper on the 8 trigonometric identites but can't find any information on them. Please does anyone know of any websites that would have things like their history, development, applications in ancient times, origins, etc. Please help. Urgent!!!!
*Thursday, March 8, 2007 at 10:40pm by kate 316*

**Solving two step equations**

This is rather urgent now...
*Monday, September 23, 2013 at 10:44pm by Gabby*

**Domains of Functions**

I dont understand how to do this problem, can you please help me? Given the functions f and g, determine the domain of f+g. 4. f(x)= 2x/(x-3) g(x)=3/(x+6)
*Friday, September 14, 2007 at 9:43pm by Jules*

**Math C30**

Solving Equations Containing Circular Functions : Solve 2cos sq x =1
*Tuesday, November 1, 2011 at 10:00pm by don*

**advanced functions/precalculus**

1. The function f(x) = (2x + 3)^7 is the composition of two functions, g(x) and h(x). Find at least two different pairs of functions g(x) and h(x) such that f(x) = g(h(x)). 2. Give an example of two functions that satisfy the following conditions: - one has 2 zeros - one has ...
*Wednesday, January 15, 2014 at 2:33am by Diane*

**trig please**

the circles go to the top and there measurements i included in the pictures and there are right angles
*Monday, September 14, 2009 at 6:25pm by trig please*

**Trig**

Help with solving radical fractions.
*Tuesday, September 15, 2009 at 8:05pm by Anonymous*

**trig**

solving radical equations... help! 5+n+1= n+4
*Wednesday, December 8, 2010 at 6:35pm by bob*

**Trig functions**

ok, except what is the difference between A and C in #1 ?
*Tuesday, February 12, 2008 at 3:54pm by Reiny*

**Trig functions**

its just the capital S in A and lowercase s in C
*Tuesday, February 12, 2008 at 3:54pm by Jon*

**Rather Urgent math~!**

Oh and we are doing "Solving Multi-Step Equations" in this lesson
*Wednesday, September 25, 2013 at 2:23pm by Gabby*

**physics**

A car accelerates from rest at a constant rate A for some time after which it retards at a constant rate B to come to rest. If the time elapsed is T second,calculate the maximum velocity reached?(please try solving this problem by plotting velocity time graph and if you can ...
*Sunday, September 30, 2012 at 11:43am by help me out it's urgent*

**physics**

A car accelerates from rest at a constant rate A for some time after which it retards at a constant rate B to come to rest. If the time elapsed is T second,calculate the maximum velocity reached?(please try solving this problem by plotting velocity time graph and if you can ...
*Sunday, September 30, 2012 at 11:44am by help me out it's urgent*

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