Question

Dada a função f (x) x/x+1 - 1/2x-3 calcule:
a) f (1)
b) x de modo que f (x)=-1/3

Answer 1

a) f(1)=1/1+1-1/2.1-3
=1/1+1-1/2.1-3
=1/2-1/2-3
=1/2-1/-1
=1/2+1/1
=1/2+2/2
=3/2