Question: In Exercises 1 and 2, use the cofunction identities to evaluate the expression without using a calculator. 1. sin2 25 + sin2 65 2. tan2

In Exercises 1 and 2, use the cofunction identities to evaluate the expression without using a calculator.
1. sin2 25° + sin2 65°
2. tan2 63° + cot2 16° − sec2 74° − csc2 27°

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