Find $\displaystyle \displaystyle\int_{1}^{4} \frac{1}{(x+3)^3} \, \mathrm{d}x$ \(\displaystyle \d

Question

Find $\displaystyle \displaystyle\int_{1}^{4} \frac{1}{(x+3)^3} \, \mathrm{d}x$ $\displaystyle \displaystyle\int_{0}^{\frac{\pi}{4}} \cos^2 3x \, \mathrm{d}x$

Accepted Answer

(a) $\frac{33}{1568}$. (b) $\frac\pi8-\frac1{12}$.

Integration - Integrable Forms of Trigonometric Functions

Integration - Integrable Forms of Trigonometric Functions

Solution:

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