Questions and answers by

aziiancaligirl

Questions (2)

Prove:sin^2(x/2) = csc^2x - cot^2x / 2csc^2(x) + 2csc(x)cot(x) On the right, factor the numberator as a difference of two
1. 0 answers
2. 530 views
Find sin(x/2) if sin(x)= -0.4 and 3pi/2 < or equal to (x) < or equal to 2piLet's use cos 2A = 1 - 2sin<sup>2</sup> A and we can
1. 0 answers
2. 761 views