Question

sec⁴A(1-sin⁴A)=sec²A+tan²A , Prove that LHS = RHS​

Answer 1

Answer:

1

Step-by-step explanation:

1: sec^4a (1-sin^2a)^2=1/cos^2a+sin^2a/cos^2a, 2:sec^4a (cos^2a)^2=1+sin^2a/cos^2a, 3: sec^4a×1/cos^4a = cos^2a/cos^2a, 4: 1=1