Chapter 5: Problem 1
What does net area measure?
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Chapter 5: Problem 1
What does net area measure?
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a. Multiply the numerator and denominator of sec \(x\) by \(\sec x+\tan x ;\) then use a change of variables to show that $$\int \sec x d x=\ln |\sec x+\tan x|+C$$ b. Use a change of variables to show that $$\int \csc x d x=-\ln |\csc x+\cot x|+C$$
Use a change of variables to find the following indefinite integrals. Check your work by differentiating. $$\int \frac{d x}{1+4 x^{2}}$$
If necessary, use two or more substitutions to find the following integrals. $$\int_{0}^{\pi / 2} \frac{\cos \theta \sin \theta}{\sqrt{\cos ^{2} \theta+16}} d \theta(\text {Hint}: \text { Begin with } u=\cos \theta .)$$
Evaluate the following integrals in which the function \(f\) is unspecified. Note that \(f^{(p)}\) is the pth derivative of \(f\) and \(f^{p}\) is the pth power of \(f .\) Assume \(f\) and its derivatives are continuous for all real numbers. \(\int\left(f^{(p)}(x)\right)^{n} f^{(p+1)}(x) d x,\) where \(p\) is a positive integer, \(n \neq-1\)
Use a change of variables to find the following indefinite integrals. Check your work by differentiating. $$\int x^{9} \sin x^{10} d x$$
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