Question

if sin theta is equal to X then cos 2x is equal to​

Answer 1

Answer:

1-X^2

Step-by-step explanation:

cos 2theeta= 1-sin^2 theeta

= 1-(X)^2

Answer 2

Answer:

1-2x²

Step-by-step explanation:

cos2theeta = 1-2sin²theeta

= 1-2(x)²

= 1-2x²