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Some math problems have a square root in them that looks impossible to deal with. It turns out the square root was never the obstacle. It was a triangle the whole time.
Once you draw that triangle, the square root becomes an ordinary side length and the problem is easily solved.
This is the idea behind trigonometric substitution, one of the main integration techniques in Calculus 2.
Full Calculus 2 course, free and in one video:
#calculus #calculus2 #trigsubstitution #math #integration #trigonometry
#apcalculus #mathhelp #integralcalculus #mathtutorial #collegemath #studytips
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2026/11/13
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