Precalc/Trig
posted by Kibrya .
If cot(a)=3 and sin(b)= (15/17) where a being alpha lies in quadrant 3 and b being beta lies in quadrant 2, what is the exact value of sin(2a)
Respond to this Question
Similar Questions

trig
If sin alpha = 3/5, sin beta = 5/13, P(alpha) is in the third quadrant, and P(beta) is in the fourth quadrant, find the following: a) sin (alpha  beta) 
pre calc
suppose beta is an angle in the second quadrant and tan beta=2. Fine the exact vaule of sin beta and cos beta 
trig
If cot(x) = −19/18 , where x is in Quadrant IV, what is the exact value of sin(2x)? 
trig
how do you work find sin (aB)beta sign. sin a = 12/13,a lies in quadrant II,and cos B = 15/17, B lies in quadrant I. 
trig
evaluate the following in exact form, where the angeles alpha and beta satisfy the conditions: sin alpha=4/5 for pi/2 < alpha < pi tan beta=7/24 for pie < beta < 3pi/2 answer choices A. sin(beta+alpha) B. tan(betaalpha) … 
math
sin a=3/5, a lies on quadrant 1 and sin b=5/13, b lies on quadrant 2. Find cos(a+b) 
pre calc
Find the exact value of sin(xy) if sinx=3/5 in Quadrant III and cosy=5/13 in Quadrant I. 
Trigonometry
Sin A =1/2 and Cos B=12/13 where A lies in 1 quadrant and B lies in 3 quadrant. Then find tan(ab). 
Pre calc
sin(θ − ϕ); tan(θ) = 5/12 θ in Quadrant III, sin(ϕ) = − sqaure root10/10 ϕ in Quadrant IV. I used the sin equation sin(a)cos(b)sin(a)cos(b) However I am still getting the wrong answer 
Grade 12 Trigonometry
Angle a lies in the second quadrant and angle b lies in the third quadrant such that cos(a)=3/5 and tan(b)=24/7. Determine an exact value for a) cos(a+b) b) sin(ab) c) sin2a