Derivative of $2x^2$ with respect to $5x^4$ is :
Answer & explanation
Correct answer: option 3
$a=2x^2$, $b=5x^4$
$\frac{da}{dx}=4x$, $\frac{db}{dx}=20x^3$
so $\frac{da/dx}{db/dx}=\frac{4x}{20x^3}$
so $\frac{da}{db}=\frac{1}{5x^2}$
Derivative of $2x^2$ with respect to $5x^4$ is :
Correct answer: option 3
$a=2x^2$, $b=5x^4$
$\frac{da}{dx}=4x$, $\frac{db}{dx}=20x^3$
so $\frac{da/dx}{db/dx}=\frac{4x}{20x^3}$
so $\frac{da}{db}=\frac{1}{5x^2}$