IB Mathematics Analysis and Approaches Quiz
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NUMBER AND ALGEBRA
Question 1
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The coefficient of the term
a
3
b
7
a^3b^7
a
3
b
7
in the expansion of
(
a
+
b
)
10
(a+b)^{10}
(
a
+
b
)
10
is
C
C
C
. What is the coefficient of the term
x
7
y
3
x^7y^3
x
7
y
3
in the expansion of
(
x
+
y
)
10
(x+y)^{10}
(
x
+
y
)
10
?
A
C
C
C
B
1
C
\frac{1}{C}
C
1
C
3
7
C
\frac{3}{7}C
7
3
C
D
C
2
C^2
C
2
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