Free Version
Moderate

# A Definite Integral Involving a Radical

APCALC-MHFKFW

Evaluate the given definite integral:

$$\int _{ 0 }^{ 1 }{ x\sqrt { 1-{ x }^{ 2 } } dx }$$

A

$-\cfrac{1}{3}$

B

$\cfrac{1}{3}$

C

$0$

D

$1$