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Khan Academy on a Stick
Trig substitution with tangent
Trigonometric substitution
Introduction to trig substitution
Another substitution with x=sin (theta)
Integrals: Trig Substitution 1
Trig and U substitution together (part 1)
Trig and U substitution together (part 2)
Trig substitution with tangent
Integrals: Trig Substitution 2
Integrals: Trig Substitution 3 (long problem)
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