Question

__________________??

Answer 1

MARK AS BRAINLIEST...........❤❤

Answer 2

$\displaystyle\int{ \dfrac{ { x }^{ 2 } -2 }{ ( { x }^{ 4 } +5 { x }^{ 2 } +4) \arctan ( \dfrac{ { x }^{ 2 } +2 }{ x } ) } }d x$

$∫arctan(x2)4+x2dx$

$We can use substitution. Let u=arctan(x2). Taking the derivative, we see that du=121+(x2)2dx=124+x24dx=24+x2dx.Thus:=12∫2arctan(x2)4+x2dx=12∫udu=12(u22)=u24=14arctan2(x2)$