According to my substitution, should I let x=2sin and substitute that back in here?? ???
If so, where should I go from there?
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use u substitution and let
after integration use your initial supposition that to rewrite your answer in terms of x.
(Check it works by differentiating back.) In general:
how do I rewrite:
in terms of x? I don't understand.
Hello, saiyanmx89! How do I rewrite: in terms of ? Is this your first Trig Substitution?
We had: .
Using Pythagorus, we find that: . . . Hence: .
Substitute: . . . . . . . .
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