Question

clasa VIII Urgent
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exercițiul total​

Answer 1

Răspuns:

F= (3/4 , infinit)

G= (-infinit , -5/9)

H= (-3 , 28/9]

I= [-3 , 2]

J= (-infinit , 17]

Answer 2

f)

$x > \frac{3}{4}$

=> x> 3|4 => x|4 => x =D4

x={-+1;-+2;-+4} /

x>3 / => x=4

g)

$x \leqslant - \frac{5}{9}$

-5|-9 => x|-9 => x=D-9

X= {-+1;-+3;-+9} /

x<-9 / => x={-+1;-+3;-+9}

h)

$- 3 < x \leqslant \frac{28}{9}$

=> x|9 => x=D9

x={-+1;-+3;-+9} /

-3<x / => x={-+1;3;9} /

x=N / => x={1;3;9}

i)

$- 3 \leqslant x \leqslant 2$

x={ -3;-2;-1;0;1;2} /

x=Z / => x{ -3;-2;-1;0;1;2}

j)

$x \leqslant 17$

x={ 17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0,....}

Sper ca asa se rezolvau exercițiile!!