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Find the derivative of each function. Be sure to indicate the derivative in proper notation. Do only the most obvious simplifications. (3 points each) 1. y = --sin.x 2. y = cot 3x 3. y=-cos x 4. y = cos'5x 5. y = xsec x x 3 6. y = - cos x 7. y = sin 3x -cos 2x 8. y = sin* (3x-) 9. y = sin(tan 2x) 10. y = sin(5x)cos(2x) 1 1. y = tan V2x 12. y = Vtan2x