GATE (TF) Textile 2009 Question Paper Solution | GATE/2009/TF/26

Question 26 (Textile Engineering & Fibre Science)

The absolute value of the directional derivative of the surface given by $\frac{x^2}{1}+\frac{y^2}{4}+\frac{z^2}{9}=3$ at $P(1,2,3)$ in the direction of the line $OP$ , where $O$ denotes the original is

(A)	$\frac{3}{\sqrt{14}}$
(B)	$\frac{\sqrt{14}}{3}$
(C)	$\frac{6}{\sqrt{14}}$
(D)	$\frac{\sqrt{14}}{6}$

[Show Answer]

Option C is correct

Previous Question

Next Question

Frequently Asked Questions | FAQs

GATE Textile Engineering and Fibre Science (TF) Question Papers | GATE Textile Question Answer | GATE Textile Solved Question Papers | GATE Textile Papers | GATE Textile Answer Key