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Denisahaiduc99
a fost răspuns

Se considera functia f: R->R, f(x) = 2x-1. Calculati f (1)+f(2) f (8) . Help, please! :( 

Răspuns :

Cristinatibulca
f(x)=2x-1
f(1)=2x1-1=1
f(2)=2x2-1=3
f(8)=2x8-1=15
f(1)+f(2)f(8)=1+3x15=46
f(1)=2*1-1=1
f(2)=2*2-1=3
f(8)=2*8-1=15
f(1)+f(2)+f(8)=1+3+15=19
sau daca e ori f(8)
f(1)+f(2)*f(8)=1+3*15=46

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