Question

if A= 2î+ 3j^+ k^and B = 2î- 3j^ + k^ Find the magnitude of A vector + B vector​

Answer 1

Explanation:

A +B = 2i +3j +k +2i-3j +k

= 4i+2k

So magnitude is

$\sqrt{(4 {)}^{2} +2^{2} } = \sqrt{20} = 2 \sqrt{5}$