magnitude of the vector (6,4)
I will use i j k notation for presentation.
Magnitude of the vector a = 6i+4j
\(||\mathbf{a}||\\ =\sqrt{6^2+4^2}\\ =\sqrt{36+16}\\ =\sqrt{52}\\ =2\sqrt{13}\)
I have just learnt what's vectors 2 days ago :D
