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**just help me to check homework on vector calculus :)**

Find the equation of the normal vector, tangent plane, and the normal line to

the graph of the equation at point P.

here's the equation and my solution:

http://www.mrnerdy.com/forum_img/p1.JPG [Broken]

[PLAIN]http://www.mrnerdy.com/forum_img/p2.JPG [Broken]

please help me verify if my answer is correct. tqvm!

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