Question

what is the angle between vector (p+q) and vector (p×q)

Answer 1

$\textbf{Answer :}$

$\textbf{Now,}$

$\textbf{(p + q).(p x q)}$

$\textbf{= p.(p x q) + q.(p x q)}$

$\textbf{= 0 + 0}$,
$\textbf{since a.(a x b) = 0}$

$\textbf{= 0}$

$\textbf{Therefore, the angle between the}$
$\textbf{given two vectors is 90 degree.}$

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