Question

When cosa, cos ,cos y are called the directional cosiner if the vector there
cos²a + cos² B+ cos²y = ?
(A) 1
(B) 0
(C) both
(D) none​

Answer 1

Answer:

A) 1

B) 0

C) both

D) none

Just choose a random option. It really does not matter

Explanation:

Answer 2

If you know the answer please tell me too