MAT M2 Review Sheet
EXAM 1
Name:_
1. 50 ( 60)
2. 55 45
3. ( 3)2
4. What is the value of (2 x )2 2 x 2 when x = -1?
5. What is the value of x 2 2 xy + 2 y 2 when x =-3 and y =-2?
6. 5 2(4 7) + 8
7. Simplify: x 4(x 2)
1
8. Solve for x: 4 x = 26
3
9. Solve f
CHAPTER 4
Direct Proof
t is time to prove some theorems. There are various methods of doing
this; we now examine the most straightforward approach, a technique
called direct proof. As we begin, it is important to keep in mind the
meanings of three key ter