Brooks Fuentes
01/28/2024 · Primary School
Evaluate (a) \( \int\left(x^{2}+10\right)^{50} 2 x d x \)
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Tutor-Verified Answer
Step-by-step Solution
Calculate the integral \( \int\left(x^{2}+10\right)^{50} 2 x d x \).
Evaluate the integral by following steps:
- step0: Evaluate using substitution:
\(\int \left(x^{2}+10\right)^{50}\times 2x dx\)
- step1: Multiply the terms:
\(\int 2x\left(x^{2}+10\right)^{50} dx\)
- step2: Use properties of integrals:
\(2\times \int x\left(x^{2}+10\right)^{50} dx\)
- step3: Use the substitution \(dx=\frac{1}{2x} dt\) to transform the integral\(:\)
\(2\times \int x\left(x^{2}+10\right)^{50}\times \frac{1}{2x} dt\)
- step4: Simplify:
\(2\times \int \frac{1}{2}\left(x^{2}+10\right)^{50} dt\)
- step5: Use the substitution \(t=x^{2}\) to transform the integral\(:\)
\(2\times \int \frac{1}{2}\left(t+10\right)^{50} dt\)
- step6: Use properties of integrals:
\(\int \left(t+10\right)^{50} dt\)
- step7: Use the substitution \(v=t+10\) to transform the integral\(:\)
\(\int v^{50} dv\)
- step8: Evaluate the integral:
\(\frac{v^{51}}{51}\)
- step9: Simplify:
\(\frac{1}{51}v^{51}\)
- step10: Substitute back:
\(\frac{1}{51}\left(t+10\right)^{51}\)
- step11: Substitute back:
\(\frac{1}{51}\left(x^{2}+10\right)^{51}\)
- step12: Add the constant of integral C:
\(\frac{1}{51}\left(x^{2}+10\right)^{51} + C, C \in \mathbb{R}\)
The result of the integral \( \int\left(x^{2}+10\right)^{50} 2 x d x \) is \( \frac{1}{51}(x^{2}+10)^{51} + C \), where \( C \) is an arbitrary constant.
Quick Answer
The integral \( \int\left(x^{2}+10\right)^{50} 2 x d x \) evaluates to \( \frac{1}{51}(x^{2}+10)^{51} + C \).
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