Question

solve this qn ... class 12....​

Answer 1

$you \: know \: = \int \frac{1}{ {x }^{2} + 1} dx = \tan ^{ - 1}x \\ \\ \\ so \: = \int \frac{1}{ ({ {x}^{2}) }^{2} + 1 } dx \\ \\ = tan ^{ - 1} {x}^{2}$

please mark me brainlist ✔️✔️

Answer 2

dear refer to pic above

Step-by-step explanation:

hope this helps you

have a great day dued♡