Q) Geometrically represent {-5,7,3} x {-1,1)

Ans) Is this {(-5,-1),(-5,1),(7,-1),(7,1),(3,-1),(3,1)}

OR

i represent it in 3*2 dimentional space.

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- Aug 20th 2008, 04:16 AMpuneetElemantary algebra
Q) Geometrically represent {-5,7,3} x {-1,1)

Ans) Is this {(-5,-1),(-5,1),(7,-1),(7,1),(3,-1),(3,1)}

OR

i represent it in 3*2 dimentional space. - Aug 20th 2008, 10:52 PMCaptainBlack
$\displaystyle \{-5,7,3\} \times \{-1,1\}$ would normally denote the set of all ordered pairs with the first element drawn from the first set and the second from the second set. So the answer is $\displaystyle \{(-5,-1),(-5,1),(7,-1),(7,1),(3,-1),(3,1)\}$ which is a set or points in $\displaystyle \mathbb{R}^2$.

RonL - Aug 21st 2008, 01:41 AMpuneetElementary algbera
It is written geometrically not in set builder form or roster form. But its a question of Elementary algebra.

- Aug 21st 2008, 04:52 AMCaptainBlack