find area of a surface

Calculus
Tutor: None Selected Time limit: 1 Day

May 26th, 2015

the solutuion 

solution (2).jpg 

let me know if there are something not clear.

Good luck. 

May 26th, 2015

i have to give the answer as a decimal

May 26th, 2015

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May 26th, 2015
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May 26th, 2015
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