cotx = csc2x + cot2x
My Attempt:
RS:
= 1/sin2x + sin2x/cos2x
= (cos2x + sin2x) / (sin2x)(cos2x)
= (2cos^2x - 1 + 2sinxcosx) / (2sinxcosx + 1 - 2sin^2x)
= 2cos^2x - 1 / 1 - 2sin^2x
cotx = csc2x + cot2x
My Attempt:
RS:
= 1/sin2x + sin2x/cos2x
= (cos2x + sin2x) / (sin2x)(cos2x)
= (2cos^2x - 1 + 2sinxcosx) / (2sinxcosx + 1 - 2sin^2x)
= 2cos^2x - 1 / 1 - 2sin^2x