(3) find \( \frac{d}{d x}\left(\frac{\sqrt{x}}{3}-\frac{2}{\sqrt{x}}\right)^{3} \) at \( x=1 \)

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1 Answers

firstly use the formula of( a-b)^3 secondly find d/dx separately each of them and then put the value of x I.e. x = 1

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