Sunday

April 20, 2014

April 20, 2014

Number of results: 220,942

**math c30 trig**

Determine the period length of y= 2/3 sin (3x/2 ) I had 3pi/2 but the correct answer is 4pi/3 how do you get that???
*Saturday, October 22, 2011 at 12:53pm by don*

**Math C30 ( trig )**

Solve : cosxtanx + root3cosx - root3/2tanx - 3/2 = 0 Give exact answers and formula for the general solution as well as the specific solutions.. Help
*Sunday, November 6, 2011 at 6:17pm by Don*

**Math C30 ( trig )**

The description is vague "cosine wave" at x=-12, y=5, at x=0, y=9, at x=12, y=5 y= 5 + 4 cos((x-12)/48) check that.
*Sunday, November 6, 2011 at 6:20pm by bobpursley*

**math c30 trig**

period of sin kx is 2π/3, (see your other post) so for your function, period = 2π/(3/2) = 2π(2/3) = 4π/3
*Saturday, October 22, 2011 at 12:53pm by Reiny*

**math c30**

Is that sqareroot(3cosx) or cuberoot(cosx)?
*Sunday, November 6, 2011 at 12:00am by Steve*

**math c30**

what is the domain and range of the function y= -2cos 1/2 ( x + pi/4 ) -2
*Saturday, November 5, 2011 at 10:09pm by don*

**Math C30**

using unit circle solve: 2cos sq x =1
*Tuesday, November 1, 2011 at 11:40pm by don*

**Math C30**

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

**Math C30 ( trig )**

A roof in the shape of an upside down cosine wave is to be buile to cover an arena. The arena is 24m wide, the height of the roof at either side wall is 5m, and the maximum height of the roof is 9m. A) write a function that gives the height of the roof in terms of your ...
*Sunday, November 6, 2011 at 6:20pm by Don*

**math c30**

-pi/4 plus 15pi/4 divided by 2=7pi/4 how is the math done regarding the fractions (dividing and multiplying)
*Saturday, October 22, 2011 at 2:30pm by don*

**Math C30**

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

**Math C30**

In steps how do you go from: y = 25cos pi/200x + 30 to get the answer 44.695
*Monday, November 7, 2011 at 10:36pm by Don*

**math c30**

Solve cosxtanx + root3cosx - root3/2tanx - 3/2 = 0 exact answers and formula for general solution
*Saturday, November 5, 2011 at 9:37pm by don*

**Math C30**

Last Question disregard .. ooops Solving Equations Containing Circular Functions .. Solve 2cos^2x=1
*Wednesday, November 2, 2011 at 1:07am by don*

**math c30**

solve cosxtanx + root3cosx - root3/2tanx - 3/2 = 0 exact value answers and formula for the general solution and specific solutions.
*Sunday, November 6, 2011 at 12:00am by don*

**Math C30**

The first step in solving the equation: 4 sinx - sinx = 0 is what?
*Wednesday, November 23, 2011 at 11:14pm by Don*

**Math C30**

Equations containing circular functions and unit circle... solve 2cosx sinx + sinx = 0
*Tuesday, November 1, 2011 at 11:42pm by don*

**MATH C30**

Solve cosxtanx + sqroot3cosx - sqroot3/2tanx - 3/2 = 0 interval 0 to 2 pi exact answers and formula for the general solution as well as the specific solutions. Sorry Steve, missed it last night.
*Sunday, November 6, 2011 at 11:53am by don*

**Math c30**

Determine the period length of y=3tan 2x I had the answer to be pi , but the correct one is pi/2 How do you get that answer??
*Saturday, October 22, 2011 at 12:55pm by don*

**Math C30**

Does anyone know a simple way to solve identity problems? Is there a good wedsite I could learn from? I am having a really hard time with them because of the many steps involved in the way that I have been shown. (FOIL, common denominators, etc.)
*Sunday, June 10, 2012 at 8:52pm by Jill*

**Math C30**

What's next? Solve: cosx(tanx + sqroot3) - sqroot3/2(tanx-sqroot3) Provide exact answers .. help
*Monday, November 7, 2011 at 11:09pm by Don*

**Math**

I am having trouble with the concept of unit conversions for math C30. I am in cyber school and it does not seem to be explaining it as much as I would like. Here is the question: Change 25 kilometers per hour into feet per second. Can you please explain how you are finding ...
*Saturday, May 19, 2012 at 7:50pm by Jill*

**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*

**Math C30**

Go on: wolframalpha dot com When page be open in rectangle type: solve 2cos^2x=1 and click option = After few seconds when you see result click option: Show steps
*Wednesday, November 2, 2011 at 1:07am by Bosnian*

**Math C30**

Eight Fundamental Identities Sec thada - Cos thada- on one side tan thada sin thada- on the other side How do you do this ???
*Saturday, December 17, 2011 at 2:11pm by Don*

**Mathj C30**

sinx(2cosx+1)=0 sinx = 0 at x = 0,pi,2pi cosx = -1/2 at x = 5pi/3,7pi/3
*Tuesday, November 1, 2011 at 10:29pm by Steve*

**Math C30**

4 sinx - sinx = 3 sinx 3 sinx = 0 Divide both sides with 3 sinx = 0
*Wednesday, November 23, 2011 at 11:14pm by Anonymous*

**Mathj C30**

Solving Equations Containing Circular Functions : Solve 2cosx sinx + sinx = 0 when x is between 0 and 2pi
*Tuesday, November 1, 2011 at 10:29pm by don*

**MATH C30**

How to find the amplitude, period, phase shift, vertical shift, and the equation of the primary function of the function: y = -cot(1/3x - pi/6) how to find where the period begins and ends
*Sunday, November 6, 2011 at 11:59am by don*

**math C30**

An isosceles triangle is inscribed in a circle. The shortest side is the base which is 16 cm long. If the radius of the circle is 10 cm, what is the length of side "a"? Put your answer to 1 decimal place into answerblank 1 (no spaces) Answer:
*Thursday, June 7, 2012 at 11:28pm by Jill*

**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 c30**

i will use n to represent pi because it is much easier to read (-n/4+15n/4)/2 = 7n/4 ((-n+15n)/4)/2 = 7n/4 (14n/4)/2 = 7n/4 since dividing by 2 is the same as multiplying by 1/2, the 14n/4 becomes 14n/8 which equals 7n/4.
*Saturday, October 22, 2011 at 2:30pm by Cody*

**Math C30**

cosx(tanx + sqroot3) - sqroot3/2(tanx-sqroot3) = What ?
*Monday, November 7, 2011 at 11:09pm by Anonymous*

**Math C30**

cos^2(x)=1/2 cos(x)=sqrt(1/2)=sqrt(2)/2 x=π/4 or 7π/4 (0≤x<2π)
*Wednesday, November 2, 2011 at 1:05am by MathMath*

**Math c30**

If you look at the graph of y = tan x you will see that the period of the tangent curve is π , not 2π like the sine and cosine graph. so for y = tan kx, the period is π/k so for your function y = 3tan 2x the period is π/2
*Saturday, October 22, 2011 at 12:55pm by Reiny*

**trig**

Trig? This is 7th grade math. 17(6/15 -8/17) surely you can combine the two fractions getting a common denominator.
*Friday, July 16, 2010 at 9:50am by bobpursley*

**Trig**

they are all correct but I would write tanß = 4/5 also you have no angle after your trig names to say sin = 4/5 is a sin. (math joke)
*Thursday, March 6, 2008 at 3:30pm by Reiny*

**Trig 30**

x/2 = 2pi/3 yields a unique solution of x = 4pi/3 Does this answer come from some trig equation? Your subject title suggests that. In that case find the period of the trig function, then add k(period) to 4pi/3, k an integer.
*Friday, March 19, 2010 at 7:59pm by Reiny*

**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*

**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- gr.12 Trig. **

Hi, could someone explain to me how to use a counterexample in trig to prove whether something is either an identity or equation? For ex. how would you do that with this question? sec^2x-tan^2x= cos x
*Monday, January 11, 2010 at 7:15pm by May*

**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*

**MATH C30**

A roof in the shape of an upside down cosine wave is to be built to cover an arena. The arena is 24 m wide, the height of the roof at either side wall is 5 m, and the max height of the roof is 9m . write the function that gives the height of the roof in terms of the distance ...
*Sunday, November 6, 2011 at 12:20pm by Don*

**math c30**

If that is cos^(1/2), meaning sqrt(cos), then the domain will be wherever (x+pi/4) >= 0, since sqrt needs a non-negative radicand. The range of cos(u) is -1 <= y <= 1 range of 2cos(u) is -2 <= y <= 2 range of 2cos(u)-2 = -4 <= y <= 0
*Saturday, November 5, 2011 at 10:09pm by Steve*

**Math C30**

change "bearing" to "heading" throughout. Draw a diagram. Angle CAB = 60°, ABC = 90° and BCA = 30° so, you have a 30-60-90 triangle, with the long leg=238. short leg = 238/√3 = 137 and hypotenuse twice that or 274 so, the whole trip is 238+137+274=649 miles
*Thursday, June 7, 2012 at 11:29pm by Steve*

**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**

What kind of reflection does the trig function y = cos(4x/3 minus 1) have?
*Monday, April 21, 2008 at 8:53pm by Priya*

**trig**

What kind of reflection does the trig function y = cos(4x/3 minus 1) have?
*Tuesday, April 22, 2008 at 12:03am by Chaitanya*

**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*

**trig**

express the trig. ratios sinA,secA n tanA in terms of cotA.
*Saturday, May 7, 2011 at 5:49am by Anonymous*

**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**

Find (if possible) the trig function of the quadrant angle. sec 3pi/2
*Monday, June 6, 2011 at 4:00pm by Master chief*

**trig**

find the 5 trig ratios when sin theta = -5/13 and lies in quadrant 3
*Wednesday, September 14, 2011 at 10:38pm by karen*

**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, tanØ = y/x = 4/3
*Sunday, January 20, 2013 at 5:17pm by Reiny*

**trig**

its in the first chapter of my trig course. i know its review frm geometry and alg
*Friday, November 14, 2008 at 11:25am by y912f*

**trig**

simplify to a constant or basic trig function.. 1+tan(x)/1+cot(x)
*Sunday, March 14, 2010 at 1:14pm by hilde*

**Trig**

This subject is not trig. You will have to use your own graphic calculator.
*Sunday, May 15, 2011 at 12:10am by drwls*

**trig**

first of all, this is not trig, secondly your expression makes no sense.
*Monday, January 7, 2013 at 10:03pm by Reiny*

**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*

**Precalculus**

How would you solve this trig function: cos2x=sin^2-2 how do you know what trig identities to use?
*Saturday, August 6, 2011 at 5:39pm by Jess*

**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**

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**

TRIG Identities, Gr. 12: Prove: cot4x=1-tan^2x/2tan2x
*Thursday, May 23, 2013 at 2:56pm by Josh*

**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 è=2ð/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**

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*

**trig! please help!**

to bobpursely: i need to simplify the expression using trig identities. and no i meant for there to only be x
*Sunday, May 13, 2012 at 8:59pm by Brianna*

**Physics (trig)**

If the angle is x, tan x = 12.3333/19.2 Better review your trig ratios...
*Wednesday, June 19, 2013 at 9:10pm by Steve*

**trig**

what is the exact value of 7pi for all trig func.?
*Monday, February 1, 2010 at 10:23pm by claire*

**Trig**

Find (if possible) the trig function of the quadrant angle.
*Monday, June 6, 2011 at 3:59pm by Master chief*

**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**

Solve the following trig equation 2cos(x-π/6)=1
*Tuesday, January 31, 2012 at 2:51am by Matt*

**Trig **

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

**Math (Trig)**

I don't think your equation is an identity, I tried several angles and the Left Side is not equal to the Right Side. Check your typing. In general, I try to prove these type of identities by changing everything to sines and cosines, unless I can recognize one of the common ...
*Wednesday, April 9, 2008 at 2:06pm by Reiny*

**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 Q be an acute angle such that sinQ=.6. Find the values of the following using Trig Identities: cosQ and tanQ
*Tuesday, July 27, 2010 at 10:06pm by student*

**Trig**

Use Trig identities to verify that sec^4(x)-tan^4(x)=1+2tan^2(x), Only work with one side of the equation
*Tuesday, March 1, 2011 at 5:23pm by Anonymus*

**trig**

Just noticed this was for trig, not calculus. Algebraically, note that a(y) is a parabola, whose vertex occurs where y=60/4 = 15.
*Thursday, August 29, 2013 at 9:44pm by Steve*

**trig**

What is the range of the trig function sin(-3x+3)?
*Monday, April 21, 2008 at 12:35am by Chaitanya*

**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*

**trig**

how to i find the six trig values for (7pi/3)
*Tuesday, January 12, 2010 at 9:50pm by Rak*

**Trig**

Trig Identity. 1-sin^2x/1-cosx
*Sunday, May 15, 2011 at 5:56pm by Jill*

**trig**

what's the single trig. function of cos6xcosx-sin6xsinx
*Thursday, May 17, 2012 at 4:44pm by MIK*

**trig**

write 2+2 squareroot of 3i in trig form.
*Thursday, May 17, 2012 at 5:01pm by ky*

**trig**

no idea what "p" and "o" represent, or which trig function is required.
*Monday, July 22, 2013 at 8:09pm by Reiny*

**Math C30**

An airplane is leaving the first airport (A) at a bearing of 70 degrees. It then travels 238 miles to airport B. After fueling up, it leaves at a bearing of 120 degrees and lands at airport C. After fueling up it finally returns to airport (A) at a bearing of 260 degrees. What...
*Thursday, June 7, 2012 at 11:29pm by Jill*

**trig**

You have to state where the right angle is. Once that is established, this looks like a very fundamental and basic trig question.
*Wednesday, April 16, 2008 at 10:54pm by Reiny*

**trig**

What is the shift along x of the trig function y = cos(4x/3 minus 1)? Any link of proof would be appreciated if you have one Thank you
*Monday, April 21, 2008 at 8:51pm by Priya*

**trig**

What is the shift along y of the trig function y = cos(4x/3 minus 1)? Any link of proof would be appreciated if you have one Thank you
*Monday, April 21, 2008 at 8:52pm by Priya*

**trig**

Suppose that q is in standard position and the given point is on the terminal side of q. Give the exact value of the indicated trig function for q.
*Monday, February 21, 2011 at 11:50am by Anonymous*

**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**

looks like "homework dumping" to me I have two of them for you. Please indicate where you are having difficulties with these standard type of trig questions.
*Tuesday, September 17, 2013 at 11:24pm by Reiny*

**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*

**Trig**

Not trig Since it is already factored ..... x = ± 5, or x = -2
*Friday, January 18, 2013 at 11:39am by Reiny*

**trig 26**

simplify to a constant or trig func. 1. sec ²u-tan ²u/cos ²v+sin ²v change expression to only sines and cosines. then to a basic trig function. 2. sin(theta) - tan(theta)*cos(theta)+ cos(pi/2 - theta) 3. (sec y - tan y)(sec y + tan y)/ sec y combine fractions and simplify to a...
*Sunday, March 14, 2010 at 1:25pm by hilde*

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