1) y' = 5x^4 - 4x2) y' = cosx - (x+1)sinx3) y' = (2(2x+1) - (3x-2)2) / (2x+1)^2y' = (4x + 2 - 6x + 4) / (2x+1)^2y' = (-2x + 6) / (2x+1)^24) y' = -sinx - 2cosx + sec^2(x)y'(pi) = -sin(pi) - 2cos(pi) + sec^2(pi)y'(pi) = 0 - 2*(-1) + 1y'(pi) = 3
1) y' = 5x^4 - 4x
2) y' = cosx - (x+1)sinx
3) y' = (2(2x+1) - (3x-2)2) / (2x+1)^2
y' = (4x + 2 - 6x + 4) / (2x+1)^2
y' = (-2x + 6) / (2x+1)^2
4) y' = -sinx - 2cosx + sec^2(x)
y'(pi) = -sin(pi) - 2cos(pi) + sec^2(pi)
y'(pi) = 0 - 2*(-1) + 1
y'(pi) = 3