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✍🏼 integralsforyou.com - Integral of 1/(2+x^2) - How to integrate it step by step using the substitution method!
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00:00 Take out the 2 as common factor
00:16 Take 1/2 outside the integral and write x^2/2 as (x/sqrt(2))^2
00:36 Substitution: u=x/sqrt(2)
00:46 Differentiate in both sides
00:59 Substitute x/sqrt(2) and dx
01:20 Take sqrt(2) outside the integral
01:31 Simplify fraction and integrate 1/(1+u^2)
01:52 Undo substitution: u in terms of x
02:04 Add integration constant +C
02:13 Final answer!
02:16 See more!
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