Question

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Question No. 26
• The gradient V of 3 x + 4 y2 - 5 z is
Answer
A. 3xi + 4j - 5k
B. 3xi + 4y? j - 5zk
C. 3i+ 8yj - 5k
D. 3 + 8y
=​

Answer 1

Explanation:

D. The gradient of a vector v is also a vector perpendicular to it.

so let our gradient be l

so l.v = 0 since l and v are perpendicular

so v.(3+8y) = 0

assuming y2 as different axis

Answer 2

Answer:

See in image

Explanation:

See in image.