Wednesday

April 23, 2014

April 23, 2014

Number of results: 564

**TRIGONOMETRY**

Write the following trigonometric expression as an algebraic expression in x free of trigonometric or inverse trigonometric functions sin(cos^-1 x) -1≤x≤1
*Tuesday, December 4, 2012 at 4:46pm by Matthew*

**Math(Correction)**

Use the given function values and trigonometric identities (including the relationship between a trigonometric function and its cofunction of a complementary angle) to find the indicated trigonometric functions. sec Q = 5 tan = 2sqrt6 a) cos Q b) cotQ c) cot(90 degrees - Q) d...
*Tuesday, March 23, 2010 at 6:09pm by Mark*

**Math(Correction)**

Use the given function values and trigonometric identities (including the relationship between a trigonometric function and its cofunction of a complementary angle) to find the indicated trigonometric functions. sec Q = 5 tan Q = 2sqrt6 a) cos Q b) cotQ c) cot(90 degrees - Q) ...
*Tuesday, March 23, 2010 at 6:12pm by Mark*

**Math**

Use the given function values and trigonometric identities (including the relationship between a trigonometric function and its cofunction of a complementary angle) to find the indicated trigonometric functions. sec Q = 5 tan = 2sqrt6 a) cos Q b) cotQ c) cot(90 degrees - Q) d...
*Tuesday, March 23, 2010 at 4:47pm by Mark*

**Trigonometric Expressions**

Simplify and write the trigonometric expression in terms of sine and cosine: tanxcscx= 1/f(x) What does f(x)=
*Wednesday, July 20, 2011 at 8:27pm by Anonymous*

**math**

State a trigonometric ratio that is equivalent to each of the following trigonometric ratios Sin 3pie/10 Cos 6pie/7
*Saturday, November 10, 2012 at 3:42pm by Melissa*

**Math(Correction)**

Use the given function values and trigonometric identities (including the relationship between a trigonometric function and its cofunction of a complementary angle) to find the indicated trigonometric functions. Sorry for the mistake. They are two seperate functions and i need...
*Tuesday, March 23, 2010 at 5:26pm by Mark*

**math 10**

determine the value of the three primary trigonometric ratios i have triangle in front of me but what am i looking for? what is trigonometric ratios?
*Thursday, February 4, 2010 at 5:01pm by just wondering part 2*

**Trig.**

I really need help so please help. write the first trigonometric function in terms of the second trigonometric function. sec x; tan x
*Friday, April 30, 2010 at 6:40pm by Theresa*

**Trigonometric Identities**

Which of the following are trigonometric identities, I have narrowed it down to two - (cscx + cotx)^2 = 1 OR sin^2(x)sec^2(x) + 1 = cot^2(x)csc^2(x)
*Thursday, March 24, 2011 at 5:33pm by Veronica*

**Trig**

In ABC, vertex C is a right angle. Which trigonometric ratio has the same trigonometric value as Sin A? A Sin B B Cosine A C Cosine B D Tan A
*Tuesday, December 13, 2011 at 6:45pm by Carl*

**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*

**Calculus 2**

Evalute the integral of x/(x^2+4)dx using u-substitution and then trigonometric substitution. I did this and got (1/2)ln(x^2+4)+C using u-substitution and x^2+4+C using trigonometric substitution. What did I do wrong??? thank you for helping!
*Wednesday, October 10, 2012 at 6:54pm by Heather*

**Trigonometry**

I don't understand how I'm supposed set the problem up or what theta is... Use the given function value(s), and trigonometric identities (including the cofunction identities), to find the indicated trigonometric functions. sec theta = 5, tan theta 2 * 6^1/2 a) cos theta b) cot...
*Thursday, April 23, 2009 at 9:12pm by Chris*

**Trigonometric Functions**

Determine the Value of all six trigonometric functions of theta when given? I need help. This is for my midterm review, if anyone is willing to help, I'd appreciate it. a) sin theta= 3/5 and theta is in quadrant 1. b) tan theta= -2 and theta is in quadrant II c) sec theta = 2 ...
*Sunday, January 6, 2008 at 1:36pm by Mike*

**Calc**

Max is right, I read 3/4 PI as 270 degrees, which it is not. http://intmstat.com/trigonometric-graphs/cotx.gif
*Friday, July 15, 2011 at 3:19pm by bobpursley*

**Trigonometric Substitution**

Trigonometric Substitution a. Explain why the substitution x = asin(Theta) guarantees that cos(Theta) is greater than or equal to 0 . b. What sort of restriction must we put on x and a so that the substitution x = asec(Theta)will guarantee that tan(Theta) is greater than or ...
*Tuesday, June 28, 2011 at 1:51pm by John*

**trigonometric identities**

Prove the following trigonometric identities 1. tanx = sinx + sin^2x/cosx(1+sinx) 2. cos^3+(cosx)(sin^2x) = 1/secx
*Friday, June 22, 2012 at 5:06pm by noel*

**trig**

find the reference angle of -20000 and express the six trigonometric functions of -20000 in terms of the six trigonometric functions of its reference angle.
*Saturday, September 15, 2012 at 4:40pm by patrick *

**circular (trigonometric) functions**

hi, i need help solving this trigonometric equation: sinx+3cosx=0 i don't know what to do as i can't just diviide the two to create tanx which is what i have been doing in previous questions... yes, you are on the right track sinx = -3cosx sinx/cosx = -3 tanx = -3 so x must be...
*Saturday, April 14, 2007 at 12:07am by elle*

**calculus**

sin ( x ) = + OR / [ tan (x) /sqrt ( 1 + tan ^2 (x)] sin ( x ) = + OR - [ 4/ sqrt ( 1 + 4 ^2 ) ] sin ( x ) = + OR - m4/ sqrt ( 1 + 16 ) sin ( x ) = + OR - 4/ sqrt ( 17) cos ( x ) = + OR / 1 /sqrt ( 1 + tan ^2 (x) cos( x ) = + OR - 1 / sqrt ( 17) If you want all trigonometric ...
*Thursday, September 1, 2011 at 8:29am by Bosnian*

**tRiG/ AlGeBrA**

1) Use double-angle identities to write the following expression, using trigonometric functions of x instead of 4x. cos 4x 2) Use half-angle identities to write the following expression, using trigonometric functions of x instead of x/4. sin x/4
*Monday, February 27, 2012 at 2:54am by CHEYANNE*

**trigonometric**

2 cos x - 1 =0
*Wednesday, May 5, 2010 at 11:18am by charles*

**trig**

1) Use double-angle identities to write the following expression, using trigonometric functions of x instead of 4x. cos 4x 2) Use half-angle identities to write the following expression, using trigonometric functions of x instead of x/4. sin x/4
*Monday, May 28, 2012 at 11:36pm by marie*

**Mathematics - Trigonometric**

correct.
*Monday, November 5, 2007 at 7:12pm by bobpursley*

**Mathematics - Trigonometric**

Thanks drwls
*Monday, November 5, 2007 at 7:12pm by Anonymous*

**Trigonometry**

what is the trigonometric form of z=1+i?
*Saturday, December 1, 2012 at 11:35pm by Josh G.*

**Trigonometric Functions**

This is confusing
*Thursday, July 15, 2010 at 10:41pm by James *

**Mathematics - Trigonometric Identities**

yes correct
*Thursday, November 8, 2007 at 6:17pm by Reiny*

**precalculus**

put this in trigonometric form: -3-i
*Monday, May 26, 2008 at 11:55am by bill*

**trig**

What is the trigonometric notation for 3-3(sqrt3i)?
*Sunday, April 17, 2011 at 1:14pm by Jackie*

**Trigonometric prob.**

@mail ru
*Monday, April 30, 2012 at 1:18pm by Anonymous*

**Trigonometric Functions**

What's trigonometry? What's Kumon.
*Thursday, July 15, 2010 at 10:41pm by Mia*

**Trigonometry**

What does a trigonometric value represent?
*Wednesday, August 21, 2013 at 8:34pm by Anonymous*

**math**

what is the ffive trigonometric function of sin =2/5 ?
*Friday, August 21, 2009 at 5:52am by jhonas*

**math **

find the value of the trigonometric functions
*Monday, November 23, 2009 at 1:27pm by dq*

**Trigonometry**

How do you express sin4x as a trigonometric function of x?
*Monday, February 15, 2010 at 4:54pm by Veronica*

**trigonometric**

ya drwls is right haha
*Wednesday, May 5, 2010 at 11:18am by Dylan*

**precal**

identify the trigonometric form of -6+6i
*Friday, May 20, 2011 at 4:18pm by joe*

**Trigonometric Ratios**

tan A = 1/2 A = 26.6 deg
*Friday, October 21, 2011 at 6:50am by Damon*

**Trigonometric Functions**

idk anything here
*Thursday, July 15, 2010 at 10:41pm by asd*

**Mathematics - Trigonometric Identities - Reiny**

I see it now, thanks
*Saturday, November 10, 2007 at 6:50am by Anonymous*

**math**

to find of trigonometric ratios of angles 60
*Tuesday, March 9, 2010 at 7:47am by atiqullah*

**trig**

Graph this trigonometric function. y=-4cos(x/2+3.14)+1
*Friday, April 15, 2011 at 8:47pm by Bob*

**Trigonometry**

what is z= -2-2square root of 3i in trigonometric form.
*Saturday, December 1, 2012 at 11:35pm by Josh G.*

**Trigonometry**

what is z= -2-2square root of 3i in trigonometric form.
*Sunday, December 2, 2012 at 1:10am by Josh G.*

**graphs of sin**

http://www.intmath.com/trigonometric-graphs/2-graphs-sine-cosine-period.php
*Tuesday, April 5, 2011 at 10:34pm by bobpursley*

**Trigonometric functions**

BA is the hypotenuse BC is the opposite leg
*Sunday, February 10, 2008 at 1:53pm by Jon*

**Mathematics - Trigonometric Identities**

cscx-cotx forms an identity with?
*Thursday, November 8, 2007 at 6:17pm by Janel*

**Math**

state the primary trigonometric ratio associated with angle a p(-2,5)
*Saturday, November 26, 2011 at 1:09am by Nikki*

**math**

The trigonometric function sin(-8 x) is equal to one of following:
*Tuesday, December 13, 2011 at 8:16pm by Anonymous*

**Calculus 2**

find the integral of x/(x^2+4)dx using trigonometric substitution.
*Wednesday, October 10, 2012 at 9:08pm by Heather*

**math**

find the 6 trigonometric functions of tan (-3/8): sin <
*Tuesday, November 27, 2012 at 5:37am by kym*

**Math**

Find in terms of trigonometric function of x Tan(90 + x)
*Saturday, January 19, 2013 at 4:00pm by Riley*

**Math**

Trigonometric identity SinD tanD Simplify please
*Tuesday, February 5, 2013 at 5:37pm by Sarah*

**Trigonometric Functions! (Ferris Wheel)**

Thank you very much Steve!
*Tuesday, May 21, 2013 at 4:08pm by Sammy*

**trig**

write the expression sin4xsin5x as a sum or difference of trigonometric functions
*Monday, April 14, 2008 at 11:58am by sam*

**Trig**

Give the exact value of the trigonometric function: arctan(√3)
*Thursday, January 21, 2010 at 12:18am by Trevor*

**Integral (trig.substitutions)**

Try the trigonometric substitution x=5tan(θ)
*Saturday, June 26, 2010 at 8:16pm by MathMate*

**Trig**

verify following trigonometric identities. 1/sec0tan0 = csc0 = sin0
*Tuesday, August 24, 2010 at 8:30am by Jose*

**calculus**

nevermind, I got it. The trick was using trigonometric reduction formulas.
*Friday, July 6, 2012 at 9:46am by Parker*

**trig**

Solve the equation. Express your answer in trigonometric form. x^5 - 11 = 0
*Friday, June 28, 2013 at 12:39pm by tony*

**calculus**

There are standard formulae for integrals of rational functions of trigonometric formulae. In this case, you can simplify things as follows. Let's use the abbreviation: t = tan(x) s = sin(x) c = cos(x) We can write: (1-t)/(1+t) = (c-s)/(c+s) = (c - s)^2/(c^2 - s^2) = (c^2 + s^...
*Saturday, July 30, 2011 at 1:46pm by Count Iblis*

**Calculus III**

Derivative of Inverse Trigonometric Functions f(x) = sin(arccos(4x)) What is f'(x)?
*Tuesday, January 22, 2008 at 4:26pm by Sean*

**Calculus III**

Derivative of Inverse Trigonometric Functions f(x) = cos(arcsin(2x)) What is f'(x)?
*Tuesday, January 22, 2008 at 9:08pm by Sean*

**math**

prove the following trigonometric identity: (cos x/(1+sinx))+tanx = secx
*Wednesday, March 12, 2008 at 9:11pm by Liz*

**trig**

determine an exact expression for the trigonometric function sin(13pi/12).
*Monday, October 25, 2010 at 4:15am by jj reddick*

**trig**

Evaluate each value as a trigonometric function of an angle in Quadrant 1. #1 cos (27pi/8)
*Tuesday, March 22, 2011 at 7:30pm by Stephanie*

**math**

Simplify by referring to the appropriate triangle or trigonometric identity: cos(arctan(x))
*Friday, September 2, 2011 at 9:31pm by terra*

**trig**

cos t=.7, tan t<0. find the values of the other 5 trigonometric functions.
*Sunday, November 27, 2011 at 1:42pm by Marni*

**trig**

Find the exact value of the trigonometric function. -cot(pi/4 + 16pi)
*Monday, December 12, 2011 at 8:59am by Keenia*

**maths**

Express sin 2x cos 4x as a sum of trigonometric functions.
*Sunday, December 23, 2012 at 2:27pm by laura*

**maths**

Express sin 2x cos 4x as a sum of trigonometric functions
*Monday, December 24, 2012 at 8:00am by tom*

**Trig**

Rewrite the expression (tan A)(cot A) in terms of a single trigonometric ratio.
*Tuesday, September 17, 2013 at 11:24pm by Anonymous*

**Math**

How do you figure out trigonometric functions that aren't on the unit circle? example: sin(-27pi/6)
*Tuesday, August 11, 2009 at 5:18pm by Anonymous*

**trig**

Rewrite cos4x as an equivalent expression that does not contain powers of trigonometric functions greater than 1.
*Wednesday, December 16, 2009 at 9:40pm by Steve*

**trig**

Rewrite 8 cos2 x as an equivalent expression that does not contain powers of trigonometric functions greater than 1
*Wednesday, December 16, 2009 at 9:46pm by Steve*

**math**

Find (if possible) the trigonometric function of the quadrant angle. sec 3pie/2 I really do not know how to do this.
*Friday, January 15, 2010 at 1:30pm by Hannah*

**trig**

Find the 6 trigonometric function of teta if it's terminal side passes through the point(1,2)
*Thursday, June 24, 2010 at 6:59am by Ma.Theresa Limjap*

**trig**

angle a is acute and sin = u. find the other five trigonometric functions in the terms of u.
*Wednesday, May 4, 2011 at 8:21pm by sheena*

**precal 2**

Reprenesent the complex number 5/2(square root of 3-i) graphically and find its trigonometric form.
*Friday, July 29, 2011 at 4:07pm by danielle*

**math**

Find the values of the trigonometric functions of t if tan t= 3 and the terminal point of t is in quadrant III.
*Thursday, November 29, 2012 at 3:14pm by amaa*

**Math**

Simplify and write the trigonometric expression in terms of sine and cosine: ((2+tan^2 x)/(sec^2 x))-1 = (f(x))^2 f(x)= ??
*Sunday, April 14, 2013 at 9:28pm by dylan*

**Trigonometry**

Given that cos(3x)=acos^x−bcosx is a trigonometric identity, what is the value of a+b ?
*Tuesday, April 23, 2013 at 1:06pm by Tony*

**Trigonometry**

Given that cos(3x)=acos^3(x)−bcos(x) is a trigonometric identity, what is the value of a+b
*Tuesday, April 23, 2013 at 1:07pm by Tony*

**Trigonometry**

. Which of these standard trigonometric functions has the least period? A. cosine B. cosecant C. tangent D. secant
*Sunday, December 8, 2013 at 9:26pm by steve*

**Trigonometry**

. Which of these standard trigonometric functions has the least period? A. cosine B. cosecant C. tangent D. secant
*Sunday, December 8, 2013 at 9:42pm by steve*

**Trigonometric**

Find the exact value of cos7(pi)/12 using sum and/or difference identities.
*Sunday, March 21, 2010 at 9:14pm by Michael*

**Math**

Find (if possible) the trigonometric function of the quadrant angle. sec 3pi/2 My answer was 0. Am I correct?
*Tuesday, March 30, 2010 at 10:51am by Mark*

**trig**

Which basic trigonometric function has the same graph as y= -cot(x+(pi/2)).Please justify your answer.
*Tuesday, April 13, 2010 at 7:51pm by Soyer*

**pre algebra**

Yes, this is the first glimpse into trigonometry, dealing with the basic definitions of the trigonometric ratios.
*Monday, June 21, 2010 at 4:02pm by MathMate*

**Trig**

Which trigonometric function can equal or be greater than 1.000? A Sine B Cosine C Tangent D none of the above
*Tuesday, December 13, 2011 at 6:24pm by Carl*

**math**

Write expression for the other five trigonometric ratios for each acute angle: A) csc=a/b B) sec= x+1/x-1, x1
*Friday, February 24, 2012 at 3:23pm by Christine*

**precalculus**

Write the trigonometric expression in terms of sine and cosine, and then simplify. cos u + sin u tan u
*Tuesday, November 13, 2012 at 7:35am by Ama*

**math**

Simplify and write the trigonometric expression in terms of sine and cosine: sin x +(cot x)(cos x) = 1/f(x) f(x)= ?
*Sunday, April 7, 2013 at 7:54pm by tyler*

**math**

Simplify and write the trigonometric expression in terms of sine and cosine: sin x + (cot x)(cos x) = (1/f(x)) f(x)= ?
*Sunday, April 14, 2013 at 1:36pm by tyler*

**pre calculus**

Simplify and write the trigonometric expression in terms of sine and cosine: ((2+tan^2 x)/(sec^2 x))-1 = (f(x))^2 f(x)= ??
*Sunday, April 14, 2013 at 7:35pm by james*

**Trig**

Identities are trigonometric equations that must be valid for any value of the angle. That is only true for the first equation.
*Sunday, January 3, 2010 at 4:07pm by drwls*

**trig**

using the trigonometric identities find the exact (radical form) value of cos (105 degrees)
*Tuesday, April 13, 2010 at 8:10pm by spencer*

**Calculus**

Hello! I am a little stuck (probably because I cannot remember my trigonometric functions). Does anyone know how to solve this equation? [-sin(x)]^2-2cosx
*Sunday, December 12, 2010 at 11:26am by Joe Schmo*

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