Bradley Gonzalez
11/11/2023 · Senior High School
Use integration by parts to evaluate \( \int \cos (3 x) \cdot \sin (x) d x \) \( \square \)
UpStudy ThothAI Solution
Tutor-Verified Answer
Step-by-step Solution
Calculate the integral \( \int \cos (3 x) \cdot \sin (x) d x \).
Evaluate the integral by following steps:
- step0: Evaluate:
\(\int \cos\left(3x\right)\sin\left(x\right) dx\)
- step1: Rewrite the expression:
\(\int \frac{1}{2}\sin\left(4x\right)+\frac{1}{2}\sin\left(-2x\right) dx\)
- step2: Use properties of integrals:
\(\int \frac{1}{2}\sin\left(4x\right) dx+\int \frac{1}{2}\sin\left(-2x\right) dx\)
- step3: Evaluate the integral:
\(-\frac{1}{8}\cos\left(4x\right)+\frac{1}{4}\cos\left(-2x\right)\)
- step4: Add the constant of integral C:
\(-\frac{1}{8}\cos\left(4x\right)+\frac{1}{4}\cos\left(-2x\right) + C, C \in \mathbb{R}\)
The result of the integration is \( -\frac{1}{8}\cos(4x)+\frac{1}{4}\cos(-2x) + C \), where \( C \) is an arbitrary constant.
Quick Answer
The integral is \( -\frac{1}{8}\cos(4x)+\frac{1}{4}\cos(-2x) + C \).
Answered by UpStudy AI and reviewed by a Professional Tutor
UpStudy ThothAI
Self-Developed and Ever-Improving
Thoth AI product is constantly being upgraded and optimized.
Covers All Major Subjects
Capable of handling homework in math, chemistry, biology, physics, and more.
Instant and Accurate
Provides immediate and precise solutions and guidance.
Try Now
Ask Tutors
Ask AI
10x
Fastest way to Get Answers & Solutions
By text
Enter your question here…
By image
Re-Upload
Submit