1) (x+2 , y ) = (2,3) then 2xy + 1 = ....... a) 13 b) 25 c) 1 d) zero 2) if y = {1,4,5} , n(x)= 4 then n(XxY)= a) 3 b) 40 c) 12 d) 20 3) if (x3, y2 ) = (1,4) , x>y n then xy = .... a) 4 b) 2 c) -2 d) -4 4) if XxY = {(1,2),(1,3),(2,2),(2,3),(4,2),(4,3)} find X , Y a) X={1} , y={2,3,4} b) X={1,2} , y={2,3} c) X={1,2,4} , y={2,3} d) y={1,2,4} , x={2,3} 5) if the point (1,c-5) located in x- axis then c = a) 0 b) 5 c) -10 d) -5 6) which of the following lies on the 4th quad a) (-2,5) b) (-2,-4) c) (3,-3) d) (-6,-3) 7) if n(x) = 4 , n(XxY) = 20 then n(y)= ,,,, a) 80 b) 16 c) 5 d) 10

cartesian product

de
Imprimir
Incorporar

Ranking

Estilo visual

Opções

Alterar modelo

Restaurar arquivo salvo automaticamente: ?