1.

Integrate the following functions cos sqrtx/sqrtx

Answer»

Solution :LET.` t =sqrtx`. Then `DT = 1/(2sqrtx) dx`
`GT 1/sqrtx dx = 2dt`
therefore` int (COS sqrtx)/sqrtx dx = int costxx2dt`
=`2 sint t+c = 2sin sqrtx+c`


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