Question

Prove that 1+(cot^2 theta-tan^2 theta) cos^2 theta = cos^2 theta

Answer 1

Answer:

{ Math | trig | identities }

sin(theta) = a / c csc(theta) = 1 / sin(theta) = c / a

cos(theta) = b / c sec(theta) = 1 / cos(theta) = c / b

tan(theta) = sin(theta) / cos(theta) = a / b cot(theta) = 1/ tan