Matematică
danaulita
2017-03-07 15:16:30
Cine stie?E urgent!!Dau coroana
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castelley
2017-03-07 15:52:11

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∈RQ, 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

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