Saturday

February 28, 2015

February 28, 2015

Number of results: 57,618

**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!
*December 20, 2011 by Sally*

**trig**

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

**trig**

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

**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
*January 19, 2012 by Claire*

**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
*January 19, 2012 by Claire*

**Algebra 1 Explanation (Anyone, please!)**

Please, can anyone explain the concept of graphing quadratic functions to me? For example, how must I graph gradratic functions such as y = x^2 - 2x - 3? If anyone could also include step-by-step solving methods, I would truly appreciate it.
*April 15, 2014 by Victoria*

**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?
*May 18, 2012 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
*December 17, 2011 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
*March 19, 2013 by zachary*

**Math- Urgent**

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

**Math- Urgent**

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

**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
*April 12, 2007 by raychael*

**solving exponential functions**

solve: 2^7-x = 1/2 *show all steps please !
*December 3, 2014 by jamie*

**trig**

What kind of reflections are the following trig functions? y = 3cos(x-1) y = sin(-3x+3) y = -2sin(x)-4
*April 21, 2008 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)
*April 21, 2008 by Amandeep*

**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....
*September 23, 2008 by Sarah*

**trig**

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

**trig**

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

**Trig**

find the exact values of the six trig functions of angle... sin(-315degrees) how do i do this?
*September 1, 2011 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?
*September 16, 2009 by Anonymous*

**trig**

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

**trig**

write a product of two trig functions that equals 1.
*November 6, 2011 by Dani*

**Trig **

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

**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)
*January 18, 2013 by Gabby*

**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 ...
*November 20, 2012 by Jalopy*

**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! :)
*October 12, 2012 by Bailey*

**Pre-Calc/Trig**

Helpp please State the domain and range of each of the following functions: 1. f(x)=1/(x+3) 2. g(x)=√x+6 3. h(x)=x^3+2x+5
*September 28, 2014 by Anonymous*

**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
*December 4, 2008 by John*

**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!
*January 5, 2010 by Jennifer*

**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.
*January 30, 2011 by Anonymous*

**Trig**

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

**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.
*May 14, 2011 by shawn*

**trig**

find the exact values of the six trig functions of theta equals six pi divided by 8
*October 17, 2011 by don*

**Trig**

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

**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
*February 22, 2012 by Anonymous*

**algebra/trig**

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

**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..
*February 16, 2013 by jc*

**trig**

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

**trig**

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

**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!
*October 16, 2012 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!
*October 16, 2012 by Laytin*

**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... :(
*December 6, 2007 by maggie*

**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
*May 30, 2009 by LALA*

**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
*October 8, 2009 by Mark*

**To ANY SCIENCE HELPER URGENT**

1. Describe 2 methods of viral infection 2. How can a virus be helpful to its host? Please this is very urgent, I have finished everything else but these r my last 2 questions that I don't know! Please help! Thanks:)
*September 28, 2014 by Nicki*

**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 ...
*November 15, 2009 by Sean*

**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!!!!
*March 8, 2007 by kate 316*

**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?
*April 7, 2008 by Megan*

**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
*January 15, 2010 by Hannah*

**trig**

find each value by referring to the graphs of the trig functions. 1. sec 4 pi...i got 0 Find the values for theta for which each equation is true. csc (theta)=1 i got pi over 2 +2 pi n
*October 26, 2008 by gaby*

**Trig**

Help with solving radical fractions.
*September 15, 2009 by Anonymous*

**trig**

solving radical equations... help! 5+n+1= n+4
*December 8, 2010 by bob*

**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...
*September 13, 2007 by Kelly*

**Math urgent**

explain how to compute the xy term of the product (3x-4y)^2? if possible with solution please.... its urgent
*September 7, 2008 by Ayushma*

**Venn Diagram (URGENT)**

What are 6 similarities between Canada and Haiti? 1. French Influence 2. 3. 4. 5. 6. Please someone help, this is urgent. thank you.
*April 30, 2009 by John*

**MATHS! URGENT!**

describe how each sequence is generated and write down the next two terms: a) 40 41 43 46 50 55 b)90 89 87 84 80 75 c)1 3 7 13 21 31 d) 2 6 12 20 30 42 PLEASE HELP its urgent!
*September 29, 2010 by Ami*

**Trigonometry Paper 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!!!!
*March 9, 2007 by kate 316*

**science-urgent**

What are differences between Continental Drifts and Plate Tectonics? I need at last 4 for each. Please help its urgent!!!!! Thanks a bunch! Ellie
*November 24, 2008 by Ellie*

**Pre-Algebra[URGENT]**

Need help on solving this one as well- A local telephone company charges $9.75 per month for basic service and $0.20 for each call made. You are allowed to spend more than $17.00 but less than $21.50 a month. What are the most calls you can make and remain within your budget? ...
*May 26, 2009 by mysterychicken*

**Calculus**

Find the sum and difference functions f + g and f g for the functions given. f(x) = 2x + 6 and g(x) = 2x - 6 f(x) = x^2 - x and g(x) = -3x + 1 f(x) = 3x^3 - 4 and g(x) = -x^2 + 3 State the domain and range for the sum and difference functions in #3. Find the product and the ...
*September 2, 2013 by Bee*

**Math C30**

Solving Equations Containing Circular Functions : Solve 2cos sq x =1
*November 1, 2011 by don*

**Math C30**

Solving Equations Containing Circular Functions ... Solve 2cos^2=1
*November 2, 2011 by don*

**Science- urgent-review**

what type of galaxy do astronomers consider to be the oldest? It's urgent because I am studying for a grade 9 exam but I dont know what this is.. please help.
*January 20, 2015 by thi*

**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 ...
*November 18, 2010 by NEED HELP URGENT!!!*

**Algebra (urgent!)**

Let P be (-3,7) and Q be (5,-12) Find the point T on line segment PQ such that PT/TQ = 1/3 How would I go about solving this problem? Thank you so much!
*January 14, 2009 by Bella*

**trig**

If cos(t)=(-7/8) where pi<t<(3pi/2), find the values of the following trig functions. cos(2t)=? sin(2t)=? cos(t/2)=? sin(t/2)=?
*May 30, 2011 by Char*

**Calculus**

Math questions, please help me? :(? Find the composite functions f o g and g o f for the given functions. f(x) = 10^x and g(x) = log x State the domain and range for each: f(x) = 4x + 1 and g(x) = x^2 f(x) = sin x and g(x) = x^2 - x + 1 f(x) = 10^x and g(x) = log x If f = {(-2...
*September 2, 2013 by Britt*

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

Solving log functions 1) log x + log(x-6) = log 7
*February 6, 2010 by Hannah*

**Math: Solving Trig Equation**

9tan (x) - 9 sec^2 (x)/ tan (x)
*March 31, 2013 by Kristi*

**Math/Trig**

How would I evaluate these trig functions without using a calculator? U: sin(-13π/6) cot 11π/6 cot(-14π/4) sec 23π/6 Thanks in advance ^^; and if you'd tell me step by step on how to do problems like these I'd be grateful :D
*June 11, 2012 by Leah*

**trig**

find the remaining 5 trigometric functions of x cos x = 1/5, x in quadrant 1
*November 4, 2009 by rica*

**trigonometry**

simplify sin7x-sin3x as a product of trig functions.
*April 19, 2011 by casey*

**trig**

write sin4xcos2 as the sum or difference of two functions.
*May 17, 2012 by Calvin*

**Pre-Calc/Trig**

What are the polynomial names for these functions. 1.) m(x)=x+x^2-1 2.) d(x)=x+ 3.14 3.) 2-6x^2+11x^3
*November 14, 2014 by Anonymous*

**Calculus**

Integration with trig functions Integral of [(1-sinx)/cos^2x] dx
*February 12, 2015 by Anonymous*

**Algebra 2**

Solving Quadratic Systems 2x^2+5y^2=53 4x+y^2=17 Please show work I'm having trouble solving it.
*November 29, 2014 by Alicia*

**Algebra 2**

Solving Quadratic Systems x^2+y^2=2 x^2-6y=10 Please show work I'm having trouble solving it
*December 1, 2014 by Alicia*

**Algebra 2**

Solving Quadratic Systems x^2+y^2=20 x^2-6y=28 PLEASE SHOW WORK I'M HAVING TROUBLE SOLVING IT
*December 1, 2014 by Alicia*

**Functions**

consider the functions g(x)=(4-x^2)^0.5 and h(x)=(x^2)-5. find the composite functions hog(x) and goh(x), if they exist, and state the domain and range of the composite functions. ------------------------------ ok, i have figured out that hog(x)=-1-X^2, but in my answer ...
*May 17, 2008 by Ann*

**trig**

write the expression sin4xsin5x as a sum or difference of trigonometric functions
*April 14, 2008 by sam*

**Math (trigonometry)**

Find the value of each of the remaining trig functions. Csc=-4, <<3/2
*April 12, 2010 by Anonymous*

**trig/functions**

what does y=2 sin (x-pi/ .5) -1 look like on a graph with the 3 phases of the function?
*January 19, 2011 by alyssa*

**trig**

cos t=.7, tan t<0. find the values of the other 5 trigonometric functions.
*November 27, 2011 by Marni*

**trig, math**

Which of these functions has period 7? A)y= cot 7/pi x B)y= tan pi/7 x C)y= sin 7/pi x D)y= cos pi/7 x
*July 1, 2013 by John*

**Check my CALCULUS answers please! **

Any short explanation for things I got wrong would be great, too, if possible! Thanks in advanced! :) 8. Which of the following functions grows the fastest? ***b(t)=t^4-3t+9 f(t)=2^t-t^3 h(t)=5^t+t^5 c(t)=sqrt(t^2-5t) d(t)=(1.1)^t 9. Which of the following functions grows the ...
*October 7, 2013 by Samantha*

**MATH PLEASE**

can a reference angle be negative? Tye "reference angle" in google and check out the mathwords site :) no I copied and pasted the mathwords page for you, unfortunatly the diagram that was with it cant, express itself in text so it didn't appear. For any given angle, its ...
*November 22, 2006 by Kamen*

**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 ...
*January 15, 2014 by Diane*

**Trig Identities**

Please help...I'm not understanding trig identities and how to manipulate and express these two problems in their associated functions. Thanks a)Express as a function of cos (theta) 2 sin^2(theta) - 1 b)Express as a function of sin (theta) or cos (theta) tan^2(theta) - 2 sec(...
*January 6, 2009 by Donovan*

**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)
*September 14, 2007 by Jules*

**Algebra 2**

Solving Quadratic Systems 16x^2-9y^2=144 y=9-x^2 Please show work I'm having trouble solving it.
*November 29, 2014 by Alicia*

**Math C30**

Last Question disregard .. ooops Solving Equations Containing Circular Functions .. Solve 2cos^2x=1
*November 2, 2011 by don*

**gr 12. advanced functions **

Trig identity Prove: cos2x tan(pie/4 - x) ------- = 1 + sin2x
*November 21, 2009 by avm*

**Pre-calc/Trig...**

which of the following are quadratic functions? check all that apply 1. y=2x^2-3x+7 2. y=3x-4 3. y=(5x-3x^2)/4+1 4. y=x-x^3
*October 8, 2014 by Anonymous*

**Math (URGENT)**

Use transformations and the zeros of the quadratic formula f(x)=(x+4)(x-2) to determine the zeroes of each of the following functions: a. y=3f(x) f. y=f(-1/2x) I have no idea how to start this. Any help appreciated. Thanks.
*February 2, 2012 by Kade*

**Trig**

Use a cofunction to write an expression equal to csc(4/11). I need help solving this problem. Thank You
*May 11, 2011 by Rachal*

**trig **

1st-the reason i keep change my name because some of my friends are using my computer by their own name to asked questions. we are having a hard time solving each trig problems 2nd- if sin theta=0.6 and 90 degree <theta < 180 degree, find the exact value of sin 2 theta. ...
*May 8, 2011 by minh *

**trig**

Rewrite cos4x as an equivalent expression that does not contain powers of trigonometric functions greater than 1.
*December 16, 2009 by Steve*

**trig**

Rewrite 8 cos2 x as an equivalent expression that does not contain powers of trigonometric functions greater than 1
*December 16, 2009 by Steve*

**math**

The terminal side of theta is in Quadrant III and lies on the line y = 2x. What are the 6 trig functions?
*April 12, 2010 by Becky*

**trig**

angle a is acute and sin = u. find the other five trigonometric functions in the terms of u.
*May 4, 2011 by sheena*

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