Question

4.7
Given a +b+c+d = 0, which of the following statements
are correct :
(a) a, b, c, and d must each be a null vector.
(b) The magnitude of (a + c) cquals the magnitude of
(b + d).
(c) The magnitude of a can never be greater than the
sum of the magnitudes of b, c, and d.
(d) b + c must lle in the plane of a and d il a and d are
not collinear, and in the line of a and d, if they are
collinear ?​

Answer 1

Answer:

anwser is (a) because those are bull vectors

Answer 2

Answer:

Ur answer is A

Explanation:

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