Question

Cos^theta(1+tan^2theta)+sin^2theta(1+cot^2theta)=2

Answer 1

Answer:

Cos²theta(1+tan²theta)+sin²theta(1+cot²theta)=2

Cos²theta(sec²theta)+sin²theta(cosec²theta)=2 ...(1)

note Cos²theta=1/sec²theta

note Cos²theta=1/sec²theta sin²theta=1/cosec²theta

then (1) eqn = 1+1 = 2

hope this will help you