74 Answered Questions for the topic Trigonometry Identities
Trigonometry Identities Trigonometry
06/17/21
Simplify with a calculator
Cos (90 +x) x tan(540 +x) x cos(180 - x) + sin(-90)
12/07/20
Trig Identities
Given š šš š¼ = 7 and š šš š½ = 3, š¼ and š½ in quadrant II, find 25 5(a) š šš(š¼ + š½), (b) š”šš(š¼ + š½), and (c) the quadrant of š¼ + š½.
Trigonometry Identities Trigonometry
10/08/20
Trigonometry Identities
Is -tanx simpler than -sinx/cosx? Or do i leave my simplified answer as -sinx/cosx instead of changing it to -tanx?
06/27/20
find sin theta, given sec theta= 4/3 and tan theta<0
I know that theta must be in the fourth quadrant but I am lost on what identities to use for solving sin theta.
Trigonometry Identities Trigonometry
05/22/20
For triangle ABC, angle A = 26 degrees, a = 7 cm, b = 15 cm. Determine ALL possible values for c. Round your final answer.
Apparently there might be more than one answer
Trigonometry Identities
07/26/18
If SinĪø+sin²θ=1 Prove that cos²θ+Sinā“Īø=1
.....................................................
Trigonometry Identities
07/10/18
Solve the equation for 0<q<360. SecĪø=(2sqrt3)/3
Trig equation and identityĀ
Trigonometry Identities
04/12/18
Verify the following Identity:
tanĪøcos2Īø=(2tanĪøcos2Īø-tanĪø/1-tan2Īø)
Trigonometry Identities
03/25/18
sin(45+x).sin(45-x)=1/2cos2x
prove that sin(45+x).sin(45-x)=1/2cos2x
Trigonometry Identities
03/22/18
trig exercise of sums and differences identities
If cosα=0.891 and cosβ=0.577 with both anglesā terminal rays in Quadrant-I, find the values of tan(α+β)Your answers should be accurate to 4 decimal places.
please help, thanks!
Trigonometry Identities
03/22/18
trig exercise of sums and differences identities
If cosα=0.173 and cosβ= 0.432 with both anglesā terminal rays in Quadrant-I, find the values of cos(α+β)=?
cos(α-β)=?
Your answers should be accurate to 4 decimal places.
please help! thanks !
03/02/18
Solve on the interval [0,2pi) 1-cos theta = (2 - sqrt 3)/2
I dont quite remember how to solve this, if anyone could help.
01/28/18
Need Help Solving cos -105 with sum or difference identity
The question is cos -105. I know how to do the process for it but for some reason my answer doesn't have the right negatives.
I am getting:
Ā
ā2 + (-ā6)
--------------
Ā Ā Ā Ā 4
Ā
The actual...
more
01/26/18
Can't Solve -1-ā3 * 1-ā3 ------- ------ 1+ā3 * 1-ā3
I am doing sum and difference formulas with sin, cos, and tan. I am doing tan75 with the difference formula.
Ā
So tan 120-45
Ā
I have all the things found I just don't know how to multiply it...
more
Trigonometry Identities Trigonometric Identities
12/29/17
Rewriting trigonometric identities
How do I rewrite (tanĪø+secĪø)/cosĪø in terms of sinĪø?
(fully simplified)
Trigonometry Identities Trigonometry
11/22/17
Trigonometry question
prove that
tan6.tan42.tan66.tan78=1
11/15/17
Solve a trig equation
solve the equation for the solutions over the interval [0 degrees, 360 degrees)
Ā
6sec2xtanx=12tanx
Ā
I am unsure of where to begin.
11/15/17
Trig functions
cos(3theta)=-1
solve for exact solutions over the interval [0,360 degrees]
Ā
I am having trouble finding a place to start.
07/31/17
Find the values of the six trigonometric functions if the conditions provided hold.
cos(2Īø) = 1/ā2 (1 divided by square root 2)90° ⤠θ ⤠180°
Trigonometry Identities
03/30/17
Use the following information to determine sin(2x)? sin (x) = 2/3 and cos (x) is negative
Solve step by step to get the answer
Still looking for help? Get the right answer, fast.
Ask a question for free
Get a free answer to a quick problem.
Most questions answered within 4 hours.
OR
Find an Online Tutor Now
Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.