Question

SAT subject test problem:
(I will post the problem below)

Answer 1

If \[\sin 2\theta=\frac{ 2 }{ 5 }\] then \[\frac{ 1 }{ \sin \theta \cos \theta } \] =?

Answer 2

do u have casio class pad 330

Answer 3

I have a graphing calculator

Answer 4

\[\sin2\theta = 2\sin \theta \cos \theta \] therefore when you reciprocate R.HS and LHS. Your get \[\frac{1}{2\sin\theta \cos\theta} = \frac{5}{2}\]

Answer 5

therefore your answer is 5

Answer 6

thank you :)