Did it occur to you to find theta first?
Theta=arcsin8/17 =0.489957326 rad in the first quadrant, or in the second quadrant,
PI- 0.489957326 rad= 2.65163533rad
Put each of these in your google search windown:
sin(2* 2.65163533)
cos(2*2.6516)
etc
sin theta = 8/17 and theta is in the second quadrant. Find sin(2theta),cos(2theta),tan(2theta) exactly
sin(2theta)
cos(2theta)
tan(2theta)
1 answer
2 answers