Question Number 48960 by ggny last updated on 30/Nov/18
$${help}\:{me}\:{sir}\:{plz} \\ $$
Answered by $@ty@m last updated on 01/Dec/18
$${sure}… \\ $$$${but}\:{what}\:{is}\:{the}\:{question}? \\ $$$${and}\:{what}\:{do}\:\mathrm{N},\:\beta\:\:{and}\:\gamma\:{stand}\:{for}? \\ $$