(c) \int \sec^2 \theta \tan^3 \theta \,d\theta (d) \int \frac{\cos x}{\sin^2 x} \,dx
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f sec x dx: This is the integral of secant x with respect to x. We can use the substitution u = sec x + tan x to simplify this integral. Then, du/dx = sec x tan x + sec^2 x, and dx = du/(sec x tan x + sec^2 x). Substituting these into the integral, we get: ∫ sec Show more…
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