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Indian Navy INET Log Tangent — practice questions

Explore 1 free Log Tangent questions in Indian Navy INET Mathematics. Open each question or exercise to read its content, reference answers and available explanation.

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Log Tangent questions and exercises with answers

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Worked practice questions

$\displaystyle\int_0^{\pi/2} \log(\tan x)\, dx = ?$

  1. $-(\pi/2)\ln 2$
  2. $0$ (by King's symmetry between $\sin$ and $\cos$)
  3. $\pi\ln 2$
  4. $\ln 2$
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Correct answer: B. $0$ (by King's symmetry between $\sin$ and $\cos$)

$I = \int \log\tan x = \int(\log\sin x - \log\cos x)$. Both pieces equal by King's (previous problem), so the difference is 0.

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