Calculus Examples

$\int_{\frac{π}{3}}^{\frac{π}{2}} \frac{\cot (x)}{\sqrt{1 + \sin^{2} (x)}} d x$

Step 1

Use $\sqrt[n]{a^{x}} = a^{\frac{x}{n}}$ to rewrite $\sqrt{1 + \sin^{2} (x)}$ as ${(1 + \sin^{2} (x))}^{\frac{1}{2}}$ .

$\frac{d}{d x} [\int_{\frac{π}{3}}^{\frac{π}{2}} \frac{\cot (x)}{{(1 + \sin^{2} (x))}^{\frac{1}{2}}} d x]$

Step 2

Once $\int_{\frac{π}{3}}^{\frac{π}{2}} \frac{\cot (x)}{{(1 + \sin^{2} (x))}^{\frac{1}{2}}} d x$ has been evaluated, it will be constant with respect to $x$ , so the derivative of $\int_{\frac{π}{3}}^{\frac{π}{2}} \frac{\cot (x)}{{(1 + \sin^{2} (x))}^{\frac{1}{2}}} d x$ with respect to $x$ is $0$ .

$0$