Question
Integrate each of the functions.$$\int\left(1+\sec ^{2} x\right)^{4}\left(\sec ^{2} x \tan x d x\right)$$
Step 1
We can see that the function $(1+\sec^2x)^4$ and its derivative $2\sec^2x\tan x$ are present in the integral. However, the derivative is missing a factor of 2. Show more…
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