Integral by trig substitution, calculus 2, tangent substitution, 4 examples, calculus tutorial,
The sine substitution: https://youtu.be/9TFXhyc9QOM
The secant substitution: https://youtu.be/k9_l0mxIRpI
The tangent substitution: https://youtu.be/eXqHpt8sMqM
0:00 When do we use x=a*tanθ
0:31 Integral of 1/(a^2+x^2)
3:42 Integral of 1/(x^3+x)
8:20 Integral of sqrt(1+x^2)/x *hard*
15:18 How you should be practicing integrals
15:56 Integral of 1/(9+x^2)^(3/2)
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#calculus #bprpcalculus #apcalculus #tutorial #math