# Step-by-step Solution

## Solve the trigonometric integral $\int\cos\left(3\right)x^2xdx$

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e
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ln
log
log
lim
d/dx
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sin
cos
tan
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csc

asin
acos
atan
acot
asec
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sinh
cosh
tanh
coth
sech
csch

asinh
acosh
atanh
acoth
asech
acsch

### Videos

$-\frac{59}{240}x^{4}+C_0$

## Step-by-step explanation

Problem to solve:

$\int_{ }^{ }x^2\cos\left(3\right)xdx$
1

Calculating the cosine of $3$ degrees

$\int-\frac{59}{60}x^2xdx$
2

When multiplying exponents with same base you can add the exponents

$\int-\frac{59}{60}x^{3}dx$

$-\frac{59}{240}x^{4}+C_0$
$\int_{ }^{ }x^2\cos\left(3\right)xdx$