A) \[3\sqrt{2}\]
B) \[2\sqrt{3}\]
C) \[2\sqrt{5}\]
D) \[5\sqrt{2}\]
E) \[5\sqrt{3}\]
Correct Answer: D
Solution :
\[|\overrightarrow{a}-\overrightarrow{b}{{|}^{2}}=|\overrightarrow{a}{{|}^{2}}+|\overrightarrow{b}{{|}^{2}}-2|\overrightarrow{a}||\overrightarrow{b}|\cos 90{}^\circ \] \[=25+25-2\times 0\] \[=50\] \[\Rightarrow \] \[|\overrightarrow{a}-\overrightarrow{b}|=5\sqrt{2}\]
You need to login to perform this action.
You will be redirected in
3 sec
