II. Find the first derivative of the given function. 4. y = sec*0 - tan*0 5. v = (1 + sinty)z 6. y = tan 2x 1-cot 2x 7. y = (1+ x2) Arctan x - x 8. y = Arcsin-+ Val-x2 x 4t-1 9. y = 10910 4t+1 10. y = (5 -2e-3x) 2