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Vector-Algebra

If l, m, n are direction cosines of a position vector \(\vec{a}\), n which of following is true?


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This Chapter Vector-Algebra consists of the following topics

Which of the following is a scalar quantity?

If l, m, n are direction cosines of a position vector \(\vec{a}\), n which of following is true?

A unit vector is a vector whose magnitude is unity.

If l

m

n are the direction cosines of a position vector \(\vec{a}\)

then which of the following is true?

Vector Algebra

Objective-Mathematics