Another super useful technique for computing integrals involves replacing variables with trigonometric functions. This can make things seem a little more complicated at first, but with the help of trigonometric identities, this technique makes certain integrals solvable.
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5751_Trig_substitution_with_tangent.html
5747_Substitution_with_x_sin_theta_.html
5748_More_trig_sub_practice.html
5749_Trig_and_u_substitution_together_part_1_.html
5750_Trig_and_u_substitution_together_part_2_.html
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