Question: In Exercises 1-4, use the fundamental trigonometric identities to simplify the expression. (There is more than one correct form of each answer.) 1. 1 /

In Exercises 1-4, use the fundamental trigonometric identities to simplify the expression. (There is more than one correct form of each answer.)
1. 1 / cot2 x + 1
2. tan Θ / 1 - cos2 Θ
3. tan2 x(csc2 x - 1)
4. cot2 x(sin2 x)

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