Question

Prove it

Cot^2A+cosA=sin^2A​

Answer 1

Answer:

/ cot(θd). = sin(θd) / cos(θd). = cot( π / 2 - θr) (3). a. b. cot(θd) = 1 / tan(θd) ... tan (a) - tan (b) = sin (a - b) / (cos (a) cos (b)) (6f)