The derivative of 2/x is equal to -2/x2. Here, we will learn how to find the derivative of 2 divided by x. The derivative formula of 2/x is given by
$\dfrac{d}{dx}(\dfrac{2}{x})= – \dfrac{2}{x^2}$.
Derivative of 2/x
Question: Find the Derivative of 2/x.
Answer: We can express 2/x as 2x-1. So by the power rule, the derivative of 2/x is equal to -2/x².
Explanation:
$\dfrac{d}{dx}(\dfrac{2}{x})$
= $2 \dfrac{d}{dx}(\dfrac{1}{x})$
= $2 \dfrac{d}{dx}(x^{-1})$
= 2 × (-1 ⋅ x-1-1) by the power rule of derivatives d/dx(xn) = nxn-1.
= -2 × x-2
= $- \dfrac{2}{x^2}$.
Hence, the derivative of 2/x is -2/x2, and this is obtained by the power rule of derivatives.
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FAQs
Q1: What is the derivative of 2/x?
Answer: The derivative of 2/x (2 divided by x) is equal to -2/x2.
Q2: If y=2/x, then find dy/dx.
Answer: If y=2/x then dy/dx= -2/x2, that is, d/dx(2/x) = -2/x2.