Question

Find the derivative of the function at the point p in the direction of a. f(x,y,z)=7x−10y+5z,p=(4,2,5),a= 7

3
​
i− 7
6
​
j− 7
2
​
k A) 7
71
​
B) 7
41
​
C) 7
101
​
D) 7
31
​

Answer 1

The answer is B.

Answer 2

Explanation:

Correct answer : B