Q9
The magnitude of the directional derivative of the function f(x, y) = x2 + 3y2 in a direction normal to the circle x2 + y2 = 2, at the point (1, 1), is
A.
4√2
AnswerB.
5√2
C.
7√2
D.
9√2
Answer: Option A
Solution
Answer: Option A
No explanation is given for this question Let's Discuss on Board