Question

Va rog ajutor dau coroana​

Answer 1

a)3(x-2) </2(x+1) -1

3x-6 </ 2x+2 -1

3x-2x </ 1 +6

x </ 7

A={1,2,3,4,5,6,7}

x+1 = 3, x = 2

x+1 = 2, x = 1

x+1 =5, x = 4

B={1,2,4}

b) Suma B = 1+2+4= 7

c) A∩B={1,2,4}

A-B={3,5,6,7}

B-A= multime vida

(AUB) - (AUB) = multime vida

Nu stiu