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Find sin(2theta) if tan of

sin theta = 8/17 and theta is in the second quadrant. Find sin(2theta),cos(2theta),tan(2theta) exactlysin(2theta) cos(2theta)
1. 2 answers
2. asked by Sally
3. 1,809 views
Solve tan(40/90) for the double angle cos(2theta). I know I use the x^2 + y^2 = r^2 formula and cos(2theta) = cos^2theta -
1. 1 answer
2. asked by Anna
3. 677 views
sin theta = 8/17 and theta is in the second quadrant. Find sin(2theta),cos(2theta),tan(2theta) exactlysin(2theta) cos(2theta)
1. 1 answer
2. asked by Larry
3. 2,042 views
Please help me with these problems. Work and answer is appreciated! :) thanks.1. Find on the interval theta is greater than or
1. 2 answers
2. asked by gf
3. 758 views
establish identity5csc^2theta-3cot^2theta=2csc^2theta+3
1. 1 answer
2. asked by Anonymous
3. 457 views
What is the integral of 1-tan^2theta from 0 to pi/3?Using the identity tan^2theta=sec^2theta-1, I got my answer to be 2pi/3 -
1. 1 answer
2. asked by Rachel
3. 618 views
if cot theta =7/8 , evaluate (1+sin^2theta)(1-sin^2theta)/(1+cost^2theta)(1+co-^2theta)the answer should be 49/64 but i couldn't
1. 2 answers
2. asked by rani
3. 1,095 views
Find the area under one arch of a cycloid describe by the parametric equations x=3(2Theta - sin 2Theta) and y= 3(1-cos2Theta).
1. 1 answer
2. asked by Anonymous
3. 870 views
Demostrate the validity of tan^2theta-sin^2theta=sin^4theta sec^2theta
1. 1 answer
2. asked by Mb
3. 885 views
1)Find cos theta if sin theta=3/5 and 90 degrees<theta<180 degrees.A)4/5 B)-4/5 C)square root of 34/5 D)-square root of 34/5 I
1. 5 answers
2. asked by Jon
3. 998 views