Question

(p+ q) is a unit vector along x axis if i - j + k then what is the value of Q​

Answer 1

Answer:

$P+Q  \: is \: in  \: i^  \: direction \: and  \: P=i^+k^ \: </p><p>Therefore, \:  Q=−k^ \:  because  \: P+Q  \: is \: a \: unit \: vector.</p><p></p><p>$