1.

Integrate the following functions sqrt(1+x^2/9)

Answer»

SOLUTION :`INT sqrt(1+x^2/9) dx = int sqrt(1+(x/3)^2) dx`
1/(1/3)[(x/3)/2 sqrt(1+(x/3)^2) + 1/2 log|x/3 + sqrt(1+(x/2)^2)|]+C`
`3[x/6 sqrt(1+x^2/9) + 1/2 log|x/3 + sqrt(1+x^2/9)|]+c`


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