If sinx + siny = p, cosx + cosy = q and tan(x/2) tan(y/2) = 4r, then (1+r)/(1-r) is equal to
a) (p2-q2)/2q
b) (p2+q2)/2q
c) (p2+q2)/q
If sinx + siny = p, cosx + cosy = q and tan(x/2) tan(y/2) = 4r, then (1+r)/(1-r) is equal to
a) (p2-q2)/2q
b) (p2+q2)/2q
c) (p2+q2)/q
pranshu aggarwal , 15 Years ago
Grade
