Home Maths Vector Algebra Scalar or Dot Product of Two Vectors and its Applications Let a , b and c be vectors with magnitudes 3…
Maths Vector Algebra Scalar or Dot Product of Two Vectors and its Applications Single Correct MCQ
Published on: August 13, 2026

Let a , b and c be vectors with magnitudes 3, 4 and 5 respectively and a + b + c = 0, then the values of a.b + b.c + c.a is

A
47
B
25
C
50
D
– 25

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The correct answer is:
D

Squaring both sides, we get

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