(7) Use the power rule to find the derivative of f(x) = 1/x^ -22

Question

f ' (x) = __________ (Answer)?

Answer 1

f(x) = 1/x²²²

Power rule : d/dx (xⁿ) = nx^n-1

We can write 1/x^-22 as x²² (inverse) and hence, d/dx (x²²) = 22x²¹