Practicing Success

Target Exam

CUET

Subject

-- Mathematics - Section B1

Chapter

Indefinite Integration

Question:

$\int e^{\log _5 x} d x$

Options:

$\frac{x^{\log _5 e}}{\log _5 e}$

$\frac{x^{\log _5 5 e}}{\log _5 5 e}$

$\frac{x^{\log _e 5 e}+1}{\log _e 5 e+1}$

none of these

Correct Answer:

$\frac{x^{\log _5 5 e}}{\log _5 5 e}$

Explanation:

$e^{\log _5 x}=x^{\log _5 e}$  (by property of exponential function)

$\int e^{\log _5 x} d x=\int x^{\log _5 e} d x=\frac{x^{\log _5 5 e}+1}{\log _5 5 e+1}=\frac{x^{\log _5 5 e}}{\log _5 5 e}$

Hence (2) is the correct answer.