GATE (TF) Textile 2007 Question Paper Solution | GATE/2007/TF/04

Question 04 (Textile Engineering & Fibre Science)

If $f(x,y,z)=4(x^2+y^2)-z^2$ , then $\triangledown f$ at a point $(1,0,2)$ is given by

(A)	$8i-4j$
(B)	$8i-4k$
(C)	$8j-4k$
(D)	$8k-4i$

[Show Answer]

Option B is correct.

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