Question

Ajutati-ma, e urgent. Dau coroana. Ps: daca trm poza sa se vada clar si sa se inteleaga.

Answer 1

a) f(x)=0=>2x-1=0=>x=1/2=>A(1/2,0)=Gf∩OX

f(0)=1=>B(0,1)=Gf∩OY

b) f(1)=2*1-1

f(2)=2*2-1

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f(100)=2*100-1

_____________(+)

S=2(1+2+...+100)-1-1-...-1

S=2*100(100+1)/2-1*100

S=100*101-100=100(101-1)=100*100=100^2-patrat perfect