If u = xx + yy + zz , find du dx + du dy + du dz at x = y = z = 1. – McqOptions

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1.	If u = x^x + y^y + z^z , find ^du _dx + ^du _dy + ^du _dz at x = y = z = 1.
A.	1
B.	0
C.	2u
D.	u
Answer» E.

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