Question

Find the magnitude of the vector a= 2i + 3j + 4k.

Answer 1

Question :

Find the magnitude of the vector a= 2i + 3j + 4k.

Solution :

Vector a = 2i + 3j + 4k.

Magnitude of a :-

$|a| = \sqrt{ {2}^{2} + {3}^{2} + {4}^{2} } \\ |a| = \sqrt{4 + 9 + 16} \\ |a| = \sqrt{28}$

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Hope it helps you .