Question

Verify the identity.

4csc2x = 2csc^2xtan x

Answer 1

4csc2x = 4/sin2x = 4/(2sinxcosx) = 4sinx/(2sin^2xcosx) = 2tanxcsc^2x

Answer 2

How did you get 4/(2sinxcosx)?

Answer 3

@slaaibak

Answer 4

sin2x = 2sinxcosx

It's a double angle identity

Answer 5

Ohh ok

Answer 6

Thanks so much

Answer 7

it's a pleasure :)