Question

Cine stie?E urgent!!Dau coroana

Answer 1

12)
-∞.......... -2......... 7/5........√2.............√3..........2.........√5................2,5............∞
f(x)....................(2-x)............|(..............-3.............|(...................x^2 - 2.................
f(-2)=2-(-2)=4
f(7/5)=2-7/5=3/5
f(2)= -3
f(√3)=-3
f(√5)=5-2=3
f(2,5)=2,5^-2=17/4

13)
x∈Q, x={-1, 1/2, 0.99}
f(-1)=-1-1=-2
f(1/2)=1/2-1=-1/2
f(0,99)=0,99-1=-0,01

x∈R\Q, x={√2/2, √3, π}
f(√2/2)=2/4 + 4/2=10/4=5/2
f(√3)=3+1/3=10/3
f(π)=π^2 + 1/π^2=(π^4+1)/π^2