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Find the exact value for $\int_{0}^{4x} x\sec^2 x\,dx$.
Mathematics 9709 · AS & A Level · Integration
Integration — practice question
Worked solution & mark scheme
This 5-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Begin integration by parts to reach $x\tan x\pm\int \tan x\,dx$” …
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