Question

Given ā = i + 2; and b = 2i + j
what are the magnitudes of the two vectors? Are these two vectors equal​

Answer 1

$= \sqrt{ {a}^{2} + {b}^{2} + 2ab \cos( \theta) }$

$\sqrt{ {3}^{2} + {3}^{2} + 18 }$

$= \sqrt{36}$

$= 6$

Answer 2

what is the variation in acceleration due to gravity withaltid