The derivative of 4/x is equal to -4/x2. In this post, we will find the derivative of 4 divided by x by the power rule.
The derivative of 4/x is denoted by d/dx(4/x), and its formula is given by
$\dfrac{d}{dx}(\dfrac{4}{x})= – \dfrac{4}{x^2}$.
Derivative of 4/x
Question: Find the Derivative of 4/x.
Answer: We can express 4/x as 2x-1 by the rule of indices. So the derivative of 4/x is -4/x² by the power rule of derivatives.
Explanation:
$\dfrac{d}{dx}(\dfrac{4}{x})$ = $4 \dfrac{d}{dx}(\dfrac{1}{x})$
= $4 \dfrac{d}{dx}(x^{-1})$
= 4 × (-x-1-1) by the power rule of derivatives d/dx(xn) = nxn-1.
= -4 x-2
= $- \dfrac{4}{x^2}$.
Therefore, the derivative of 4/x is equal to -4/x2, and this is obtained by the power rule of derivatives.
Have You Read These Derivatives?
Derivative of 1/x | Derivative of 2/x |
Derivative of 3/x | Derivative of 1/2x |
Derivative of 1/x2 | Derivative of 2x |
FAQs
Q1: What is the derivative of 4/x?
Answer: The derivative of 4/x (4 divided by x) is equal to -4/x2.
Q2: If y=4/x, then find dy/dx.
Answer: If y=4/x then dy/dx= -4/x2.