Question

Cap. Parte intreaga, parte fractionara
Ex.
Rezolvati in multimea numerelor reale ecuatia: {x}=3/4

Answer 1

{x}=3/4=0,75

x= [x]+{x}

I. x≥0  => x∈{0,75; 1,75;  2,75;........; n,75};  n∈N

II. x<0 => x∈{-n,25;......; -2,25; -1,25;  -0,25}; n∈N