Question

Prove that (1+ Sin ) (1 – Sin )Sec2= 1​

Answer 1

Answer:

1

Step-by-step explanation:

(1+sinƟ) (1-sinƟ) sec2Ɵ=1

(1-sinƟ+sinƟ+sin2Ɵ)sec2Ɵ =1

(1-sin2Ɵ) 1/cos2Ɵ=1

(Cos2Ɵ )1/cos2Ɵ =1

                         1=1