Question

determinati numerele naturale a si b astfel incat fractia :a) 4a + 3b supra 7 sa fie subunitara

Answer 1

[tex]Fractii~subunitare~se~numesc~acele~fractii~ale~caror~numitor\\ este~mai~mare~decat~numaratorul.\\ 3a+3b\ \textless \ 7\\ Caz~I:a\ \textgreater \ b=\ \textgreater \ 4*1+3*0=4\\ Caz~II:b\ \textless \ a=\ \textgreater \ 4*0+3*1=3\\ 4*0+3*2=6\\ a=/=b.\\ (a,b)={0,1,2}(depinde~cum~faci~combinatiile). [/tex]

Answer 2

4a+3b<7

a=1
b=0
sau
a=0
b=1