In Exercises 1 4, verify the identity 1 tan t cot 1 2 tan x cot x cos x sec x 3 (1 sin )(1 sin ) cos2 4 cos2 sin2 2 cos2 1 5 cos2 sin2 1 2 sin2

Question: In Exercises 1-4, verify the identity. 1. tan t cot = 1 2. tan x cot x / cos x =sec x 3. (1 +

In Exercises 1-4, verify the identity.
1. tan t cot = 1
2. tan x cot x / cos x =sec x
3. (1 + sin α)(1 − sin α) = cos2 α
4. cos2β − sin2β = 2 cos2 β - 1
5. cos2β − sin2 β = 1 − 2 sin2 β

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