Mathematics · 2019
JEE Main · 11 January 2019, Shift 2 · Q89
All x satisfying the inequality ( cot^-1 x)^2-7( cot^-1 x)+10>0, lie in the interval:
All $\displaystyle x$ satisfying the inequality
$\displaystyle \left(\cot ^{-1} x\right)^2-7\left(\cot ^{-1} x\right)+10>0$, lie in the
interval :
Official answer
(2)
$\displaystyle (\cot 2, \infty)$
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JEE Main 2019 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.