1. suppose that a , b and c are sets. show that a \ (b u c) (a \ b) n (a \ c).

Step-by-step explanation:

We want to show that

To prove it we just use the definition of

So, we start from the left hand side:

(by definition)

(by DeMorgan's laws)

(since intersection is associative)

(since intersecting once or twice A doesn't make any difference)

(since again intersection is associative)

(by definition)

And so we have reached our right hand side.

answer: a) (0,0), (1,1), (2,8), and (3,27).

step-by-step explanation:

0^3=0

1^3=1

2^3=8

3^3=27

in effect, the exponential equation for this would me y=3^x. each x-coordinate cubed is giving the y coordinate, so a is your answer : )