Question

ma ajutati va roog!!!!!​

Answer 1

21.a) 23, 46, 69, 92

b){23, 46} {23,69} {23, 92}{46,69}{46,92}{69,92}

c){23, 46, 69}{23,69,92}{46,69,92}{23,46,92}

22. a)sau

b) si

c) si x nu apartine lui B

d) si x nu apartine lui A