Question Number 18907 by Nayon last updated on 01/Aug/17
$${Why}\:{Does}\: \\ $$$$\overset{\rightarrow} {{A}}.\overset{\rightarrow} {{B}}={ABCos}\theta?\: \\ $$
Commented by Nayon last updated on 01/Aug/17
$${Mr}.{w}\mathrm{1}\:{pls}\:{explain} \\ $$
Commented by mrW1 last updated on 02/Aug/17
$$\mathrm{This}\:\mathrm{is}\:\mathrm{the}\:\mathrm{definition}\:\mathrm{of}\:\mathrm{dot}\:\mathrm{product}\:\mathrm{of} \\ $$$$\mathrm{2}\:\mathrm{vectors}.\:\mathrm{You}\:\mathrm{can}\:\mathrm{find}\:\mathrm{it}\:\mathrm{in}\:\mathrm{every} \\ $$$$\mathrm{book}\:\mathrm{about}\:\mathrm{vectors}. \\ $$
Commented by mrW1 last updated on 02/Aug/17
