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Power Series Calculator

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1

Here, we show you a step-by-step solved example of taylor series. This solution was automatically generated by our smart calculator:

$\int\sin\left(x^2\right)\:dx$
2

Rewrite the function $\sin\left(x^2\right)$ as it's representation in Maclaurin series expansion

$\int \sum_{n=0}^{\infty } \frac{{\left(-1\right)}^n}{\left(2n+1\right)!}\left(x^2\right)^{\left(2n+1\right)}dx$
3

Simplify $\left(x^2\right)^{\left(2n+1\right)}$ using the power of a power property: $\left(a^m\right)^n=a^{m\cdot n}$. In the expression, $m$ equals $2$ and $n$ equals $2n+1$

$\int \sum_{n=0}^{\infty } \frac{{\left(-1\right)}^n}{\left(2n+1\right)!}x^{2\left(2n+1\right)}dx$
4

Solve the product $2\left(2n+1\right)$

$\int \sum_{n=0}^{\infty } \frac{{\left(-1\right)}^n}{\left(2n+1\right)!}x^{\left(4n+2\right)}dx$
5

We can rewrite the power series as the following

$\sum_{n=0}^{\infty } \frac{{\left(-1\right)}^n}{\left(2n+1\right)!}\int x^{\left(4n+2\right)}dx$
6

Apply the power rule for integration, $\displaystyle\int x^n dx=\frac{x^{n+1}}{n+1}$, where $n$ represents a number or constant function, such as $4n+2$

$\sum_{n=0}^{\infty } \frac{{\left(-1\right)}^n}{\left(2n+1\right)!}\frac{x^{\left(4n+3\right)}}{4n+3}$
7

Multiplying fractions $\frac{{\left(-1\right)}^n}{\left(2n+1\right)!} \times \frac{x^{\left(4n+3\right)}}{4n+3}$

$\sum_{n=0}^{\infty } \frac{{\left(-1\right)}^nx^{\left(4n+3\right)}}{\left(4n+3\right)\left(2n+1\right)!}$
8

As the integral that we are solving is an indefinite integral, when we finish integrating we must add the constant of integration $C$

$\sum_{n=0}^{\infty } \frac{{\left(-1\right)}^nx^{\left(4n+3\right)}}{\left(4n+3\right)\left(2n+1\right)!}+C_0$

Final answer to the exercise

$\sum_{n=0}^{\infty } \frac{{\left(-1\right)}^nx^{\left(4n+3\right)}}{\left(4n+3\right)\left(2n+1\right)!}+C_0$

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