Solution for Section 3.5 Question 3

3. When you are given a proposition such as  x · y = x· yand asked to determine if it is true or false, it is usually a good idea to try substituting some values for the variables x and y.

Let x = 3.9 and y = 2.8,  then	x · y=  10.92= 10
and	x· y= 3 · 2 = 6.

Thus the proposition  x · y = x· y is false.

Back to Section 3.5