Question

va rog frumos ex 2 ( a,b,c,d) plsss multumesc

Answer 1

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

13 < x² - 1 <= 90 => 14 < x² <= 91 => B = { 4,5,6,7,8,9 }

C = { 1, 2, 4, 8, 16, 32, 64, 128, 256, 512 }

D = { 7, 77, 777, 7777, 77777 }

sper sa te ajute