Question

what is 1-cos sqaure thetha​

Answer 1

here, theta is a,

Step-by-step explanation:

$1 - { \cos}^{2} a = { \sin }^{2} a$

${ \sin }^{2} a + { \cos }^{2} a = 1$

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Answer 2

I am taking theta as x. So the answer would be :–

1 – cos² x = sin² x