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Find sin2theta, cos2theta, and tan2theta

Find sin2theta, cos2theta, and tan2theta for costheta = -12/13 in pi < theta < 3pi/2.My answers: 20111/24336 for tan2theta.
1. 4 answers
2. asked by Anonymous
3. 2,151 views
Given that SIN Theta = -1/sqrt(10) and theta is in quadrant 4, find sin2theta and cos2theta.I'm not sure how to properly square
1. 1 answer
2. asked by Joe
3. 640 views
Find sin2theta, cos2theta if csctheta=13/12 and lies in quadrant II.Thank you!
1. 1 answer
2. asked by Sara
3. 864 views
Find the area under one arch of a cycloid described by the parametric equations x=3(2theta -sin2theta) & y=3(1-cos2theta)use 0
1. 1 answer
2. asked by anon
3. 709 views
Given that SIN Theta = -1/sqrt(10) and theta is in quadrant 4, find sin2theta and cos2theta.I'm not sure how to properly square
1. 1 answer
2. asked by Joe
3. 533 views
Prove thisCot²(90-theta) /tan² theta-1 + cosec²theta/sec²theta-cosec²theta= 1/sin²theta - cos²theta
1. 1 answer
2. asked by Akash
3. 686 views
Can someone please tell me how to derive this:its supposed to be projectile motion with spring x = Sqrt (dx*g*1/2*m) +(mgh
1. 0 answers
2. asked by Stacy
3. 364 views
Can someone please tell me how to derive this:its supposed to be projectile motion with spring x = Sqrt (dx*g*1/2*m) +(mgh
1. 0 answers
2. asked by Stacy
3. 357 views
Find all real numbers that satisfy the equation sin2theta=-1/2
1. 1 answer
2. 76 views
Use the graph of y=sin2theta to find the value of sin 2 theta for theta=pi/4.a--1 b-0 c-0.5 d-1 my answer is -1
1. 25 answers
2. asked by Steve
3. 12,155 views