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anonymous
 3 years ago
This exercise is in a section about using trig substitution to integrate. I can use trig sub, but I'm just not seeing what initial substitution to use so I can apply trig sub. Can anyone give me a hint? I don't need (don't want) it solve to the end. At least not yet.
anonymous
 3 years ago
This exercise is in a section about using trig substitution to integrate. I can use trig sub, but I'm just not seeing what initial substitution to use so I can apply trig sub. Can anyone give me a hint? I don't need (don't want) it solve to the end. At least not yet.

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anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0see this http://en.wikipedia.org/wiki/Trigonometric_substitution

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0The trick is, how do we get this integral into the form\[dx \over \sqrt{u^2 +a^2}\]

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0note, 16+x^6= (4)^2+(x^3)^2. or (x^3)^2+(4)^2.

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0what will be the a ? and what will be the u?

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0then, get the derivative of u.

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0Thanks, that is just what I needed.
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