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**Question 1:**

In each part specify the set by listing its elements:

{ x | x Є Z and (x+1)² < 10 }

**Answer:**

am i supposed to write out all the possible x's, so that my answer would be:

{0,1,2,-1,-2,-3,-4}

or do i write out the over all set which is:

{0,1,4,9}

**Question 2:**

If A={1,2,3,4,5}, which of the following sets equal A?

f) { x | x Є N and x < 6}

**Answer:**

i put that f) doesn't equal A because 0 belongs to N but doesn't belong to A...is that right?

**Question 3:**

Use Venn diagrams to show that for sets X, Y:

a) X(X+Y) = X

b) X + XY = X

c) X – Y = XY’

**Answer:**

i don't know what to do