Which of the following is equal to ?

MATHEMATICS · Single correct · A Level · Mathematics · Integration · Integration

Problem

Which of the following is equal to ∫sec⁡2x dx\displaystyle \int \sec^{2}x\,dx? (a) cot⁡x+C\cot x + C (b) sec⁡3x3+C\dfrac{\sec^{3}x}{3}+ C (c) tan⁡x+C\tan x + C (d) sec⁡x+C\sec x + C

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