Question

How do you verify −(12)sec²(x)=−2sin²(x)csc²(2x)?

Answer 1

Answer:

Step-by-step explanation:

Starting with the right side as it is more complicated:

Right side= -2sin^2 (x) cosec^2 (2x)

                = -2sin^2 (x) / sin^2 (2x)

                = -2sin^2 (X) / (2 sinx cosx)^2

                = -1 / (2 cos x)

                = (-1/2)sec^2 (x)

                = left side