Find the derivatives of the function y = 2x\(^2\)(2x - 1) at the point x = -1?

Find the derivative of \(y=\frac{x^7 - x^5}{x^4}\)

Differentiate sin x - x cos x

Find the minimum value of the function y = x(1+x)

If s = (2 + 3t)(5t - 4), find ds/dt when t = 4/5 secs