Question

if A=3i+2j and B=i-2j+3k then find magnitudes of A+B and A-B.

Answer 1

Answer:

this is the Answer..............

Answer 2

Given :

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

To Find :

magnitudes of A+B and A-B

Explanation:

$A+B =4i+3k.\\lA+Bl=\sqrt{(4^2+3^2)} =5\\\\A - B = 2i+4j-3k\\lA-Bl=\sqrt{(2^2+4^2+3^2)} =\sqrt{29}$

#SPJ2