1. Derivative of f(x) = cos2x a) 2cosx b) sin2x c) cosx(sinx) d) -2sinx(cosx) 2. Derivative of f (x) = 7e-4x a) 7e-4x b ) -4e- 4x c) -28e-28x d) -28e-4x 3. Find the slope of the tangent at x = 1 for y = In(2x + 3) a) 2 b ) C ) UTIN d) In(5) 4. Given f(x) = sin2(2x) find the slope at ( 2, 1) a) -V3 b ) V3 C ) d) 0.1395 5. For y = -In(x), find the value of x where the slope is- a x = - 6 b) - In(6) C) d) Does Not Exist 6. Find y" give y = 73x a) 213x In(7) b ) 63 3 x In ( 3 ) c) 3(73x) In (3 ) d) 9(73x) (In7) 7. If f (x) = - find f'(-1) a e b ) 2e CO 1) 21