True or false. tan^2 x = 1 - cos2x/ 1 + cos 2x

ANSWER

True

EXPLANATION

The given trigonometric equation is

Recall the double angle identity:

We apply this identity to obtain:

We maintain the LHS and simplify the RHS to see whether they are equal.

Expand the parenthesis

Recall that:

We apply these identities to get:

Also

Therefore the correct answer is True

step-by-step explanation:

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