Question Number 41860 by SmNayon11 last updated on 14/Aug/18
$$\left(\mathrm{1},\mathrm{2},\mathrm{3},........\mathrm{100}\right){are}\:{given}\:{number} \\ $$$${find}\:{the}\:{value}\:{of}\:\Sigma\left(\mathrm{1}×\mathrm{2}\right) \\ $$
Commented by MJS last updated on 14/Aug/18
$$\mathrm{sorry}\:\mathrm{but}\:``\Sigma\left(\mathrm{1}×\mathrm{2}\right)''\:\mathrm{isn}'\mathrm{t}\:\mathrm{proper}\:\mathrm{math}\:\mathrm{language} \\ $$$$\mathrm{what}\:\mathrm{does}\:\mathrm{it}\:\mathrm{mean}\:``\mathrm{sum}\:\mathrm{of}\:\mathrm{one}\:\mathrm{multiplicated}\:\mathrm{with}\:\mathrm{two}''? \\ $$
Commented by SmNayon11 last updated on 14/Aug/18
$${Yes} \\ $$