1.
Simplify
.
A.
n
+ 1
B.
n
+ 1
C.
D.
n
Hint
2.
Evaluate
A.
504
B.
252
C.
126
D.
1
Hint
3.
Expand (4
x
+ 2
y
)
4
.
A.
B.
C.
D.
Hint
4.
Which of the following is not a pattern in the binomial expansion of (
a
+ b)
n
?
A.
The sum of the exponents in each term is
n
B.
The coefficients are symmetric. They increase at the beginning of the expansion and decrease at the end.
C.
There are
n
+ 1 terms.
D.
In successive terms, the exponent of
a
increases by one, and the exponent of b decreases by one.
Hint
5.
Which of the following is an example of an expression whose seventh term in its binomial expansion is 1716
x
7
y
6
?
A.
(2
x
+
y
)
11
B.
(
x
+
y
)
13
C.
(
x
+ 3
y
)
12
D.
(
x
+
y
)
14
Hint