Evaluate the integral by making the given substitution. \(\int \cos 2 x\ d x, \quad u=2 x\) ________________ Equation Transcription: Text Transcription: integral cos? 2x dx, u=2x
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Textbook Solutions for Calculus: Early Transcendentals
Question
If \(f\) is continuous on \(\mathbb{R}\), prove that
\(\int_{a}^{b} f(x+c) \ d x=\int_{a+c}^{b+c} f(x) \ d x\)
For the case where \(f(x) \geqslant 0\), draw a diagram to interpret this equation geometrically as an equality of areas.
Solution
The first step in solving 5.5 problem number trying to solve the problem we have to refer to the textbook question: If \(f\) is continuous on \(\mathbb{R}\), prove that \(\int_{a}^{b} f(x+c) \ d x=\int_{a+c}^{b+c} f(x) \ d x\)For the case where \(f(x) \geqslant 0\), draw a diagram to interpret this equation geometrically as an equality of areas.
From the textbook chapter The Substitution Rule you will find a few key concepts needed to solve this.
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