Evaluate the definite integral. \int_{-\frac{\pi}{3}}^{\frac{\pi}{3}}x^{4}\sin x dx

Brittney Lord

Brittney Lord

Answered question

2021-11-07

Evaluate the definite integral.
π3π3x4sinxdx

Answer & Explanation

SkladanH

SkladanH

Skilled2021-11-08Added 80 answers

Step 1
Consider the given integral.
I=π3π3x4sinx
The given function is continuous function in the given interval.
Let the function is defined as
f(x)=x4sinx
Step 2
Put -x for x in the function.
f(x)=(x)4sin(x)
=x4sinx
=-f(x)
Therefore, the function is odd function.
If a odd function is continuous in the interval [−a,a]. The integration of the function in the given interval is 0.
aaf(x)dx=0
Step 3
Therefore, the given integration is zero.

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