integration using substitution (1 Viewer)

cos16mh

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Hi all,

Could I have help with


∫(limits 1 and -3) dx/√(x+3) using x=u^2-3
 

Drongoski

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Hi all,

Could I have help with


∫(limits 1 and -3) dx/√(x+3) using x=u^2-3







Why not use the Drongoski Method (if question does not insist on the substitution method!)?
 
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fan96

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Let , then

The integral becomes



(you can choose either or , it doesn't change the answer)



()

and the integral should be simple from there...

But another way is to recognise that we can integrate this by inspection:



 
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