1.(tan−1x)2+(cot−1x)2=5π28⇒x=(\tan^{-1} x)^2 + (\cot^{-1} x)^2 = \frac{5\pi^2}{8} \Rightarrow x =(tan−1x)2+(cot−1x)2=85π2⇒x=a.−1-1−1b.111c.000d.±3\pm \sqrt{3}±3Login to continueOnly logged in users canattempt or see the solution.
