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(d)/(dx)(x^(-8))=

ddx(x8)= \frac{d}{d x}\left(x^{-8}\right)=

Full solution

Q. ddx(x8)= \frac{d}{d x}\left(x^{-8}\right)=
  1. Apply Power Rule: We will use the power rule for differentiation, which states that the derivative of xnx^n with respect to xx is nxn1n\cdot x^{n-1}. Here, nn is 8-8.\newlineCalculation: (ddx)(x8)=8x81=8x9(\frac{d}{dx})(x^{-8}) = -8 \cdot x^{-8 - 1} = -8 \cdot x^{-9}