Mathematics · 2021
JEE Main · 27 July 2021, Shift 2 · Q79
If tan ((π)/9), x, tan ((7 π)/18) are in arithmetic progression and tan ((π)/9), y, tan ((5 π)/18) are also in arithmetic progression, then |x-2 y|…
If $\displaystyle \tan \left(\frac{\pi}{9}\right), x, \tan \left(\frac{7 \pi}{18}\right)$ are in arithmetic progression and $\displaystyle \tan \left(\frac{\pi}{9}\right), y, \tan \left(\frac{5 \pi}{18}\right)$ are also in arithmetic progression, then $\displaystyle |x-2 y|$ is equal to :
Official answer
(1)
$\displaystyle 0$
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JEE Main 2021 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.