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Answer
1 + (sec² θ − 1) ⁄ (sec θ + 1)
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Bonus Knowledge
To establish the identity, we start by simplifying the left side of the equation given:
Using the Pythagorean identity
, we can rewrite
as
:
Now, substituting back into the expression:
Thus, the numerator of the fraction becomes:
resulting in:
So, we have simplified the numerator as
.