Integral of 1/(x^4+1) from 1 to inf

integral of 1/(x^4+1) by brutal-force partial fraction,    • Integral of 1/(1+x^4) by Brute-force Parti...   Derivative of tanh^-1(x) and coth^-1(x),    • THE CONFUSING DERIVATIVES   Integral of sqrt(tan(x)),    • integral of sqrt(tan(x)) by brute force   ---------------------------------------- 💪 Support this channel and get my math notes by becoming a patron:   / blackpenredpen   🛍 Shop my math t-shirt & hoodies: https://amzn.to/3qBeuw6 ---------------------------------------- #blackpenredpen #math #calculus #apcalculus