Find-the-value-of-n-such-that-n-n-1-2-k-mod-10-for-n-is-integer-number-

Question Number 135958 by benjo_mathlover last updated on 17/Mar/21

$${Find}\:{the}\:{value}\:{of}\:{n}\:{such}\:{that} \\ $$$$\:\frac{{n}\left({n}+\mathrm{1}\right)}{\mathrm{2}}\:=\:{k}\:\left({mod}\:\mathrm{10}\right)\:{for} \\ $$$${n}\:{is}\:{integer}\:{number}\: \\ $$

Terms of Service
Privacy Policy
Contact: info@tinkutara.com