Question

Find the value of 1 - tan Sq theta / 1 + tan Sq theta?

Answer 1

Step-by-step explanation:

1- tan^2 A / 1+tan^2A

[1- sin^2(A)/cos^2(A)] / 1+sin^2(A)/cos^2(A)

cos^2(A)-sin^2(A). ×cos^2(A)

cos^2(A). cos^2(A)+sin^2(A)

cos^2(A) - sin^2(A)

cos^2(A) + sin^2(A)

>>. sin^A+cos^2 =1

cos^2(A) - sin^2(A)

cos2(A)