Question

To solve : 1 - sin⁴
A two formula are required
?
O (a - b )² and 1 - sin² A
O a²- b² and 1 - sin ² A
O (a - b)⁴ and 1 - cos ²A
O a² + b² and 1 - sin²A​

Answer 1

Answer:

a2 - b2 and 1 - sin2 A Option 2