In Exercises 1 4, verify the identity 1 sin( 2 x) cos x 2 sin( 2 x) cos x 3 sin( 6 x) 1 2(cos 3 sin x) 4 cos(5 4 x) 2 2(cos x sin x)

Question: In Exercises 1-4, verify the identity. 1. sin( / 2 - x) = cos x 2. sin( / 2 - x) = cos x 3.

In Exercises 1-4, verify the identity.
1. sin(π / 2 - x) = cos x
2. sin(π / 2 - x) = cos x
3. sin(π / 6 + x) = 1 / 2(cos + √3 sin x)
4. cos(5 π / 4 - x) = -√2 / 2(cos x + sin x)

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