Conjunto e funçao

por **Bruna Barreto** Ter 23 Ago 2011, 19:26

Sejam os conjuntos A={1,2,3,4,5},B={1,4,6,16} e C={2,3,8,10} eas relaçoes

R1={x,y} pertence A x B/Y=x^2}

R2={(x,y) pertence Bx C/y= x/2}

Determine intersecçao de R1 e R2

eu achei vazio,porem nao sei se esta certo,alguem pode me responder?

por **Jose Carlos** Qui 25 Ago 2011, 11:25

A={1,2,3,4,5},B={1,4,6,16} e C={2,3,8,10}

A x B = { (1,1), (1,4), (1,6), (1,16), (2,1), (2,4), (2,6), (2,16),
(3,1), (3,4), (3,6), (3,16), (4,1), (4,4), (4,6), (4,16), (5,1),
(5,1), (5,4), (5,6), (5,16) }

R1={(x,y) pertence A x B/Y=x^2}= { (1,1), (2,4), (4,16) }

B x C = { (1,2), (1,3), (1, Cool