Integral Calculus Question 277

Question: $ \int_{{}}^{{}}{\frac{3x^{2}-2\sqrt{x}}{x}}dx= $

[Roorkee 1976]

Options:

A) $ x^{3}-\sqrt{x}+c $

B) $ x^{3}+\sqrt{x}+c $

C) $ x^{3}-2\sqrt{x}+c $

D) $ x^{3}-4\sqrt{x}+c $

Show Answer

Answer:

Correct Answer: D

Solution:

$ \int_{{}}^{{}}{\frac{3x^{3}-2\sqrt{x}}{x},dx}=\int_{{}}^{{}}{3x^{2}dx}-2\int_{{}}^{{}}{{x^{-1/2}}dx}=x^{3}-4\sqrt{x}+c $ .