If sin a b 1 2 cos a b 1 2 0 July 8, 2019 16 32 64 128 If sin a b 1 2 cos a b 1 2 00 a b ≤ 900 a b find a and b If sin a b 1 2 cos a b 1 2 0 a b 90 and a b then find a and b If sin a b 1 2 cos a b 1 2 and 0 a b ≤ 90 a b then a If 0 a b π/4 and sin(a+b)=24/25 and cos(a-b)=4/5 then find the value of tan2a
