# If a, b, c are unit vectors such that a + b + c = 0, then the value of a.b + b.c + c.a isReview Later13-3/2None of the Above

## Question

## Solution 1

Given that a, b, c are unit vectors and a + b + c = 0.

We know that the square of the magnitude of a vector is equal to the dot product of the vector with itself.

So, we square both sides of the equation:

(a + b + c) . (a + b + c) = 0 . 0

Expanding the left side using the distributive property Knowee AI is a powerful AI-powered study tool designed to help you to solve study problem.

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