Choose the correct options for the following questions.
The fifth term in the expansion (x^{3}-\frac{1}{2x})^{6}$ is
Difficulty: Easy
A:
$\frac{15}{16}x^{2}$
B:
$\frac{2}{13}x^{3}$
C:
$\frac{17}{7}x^{2}$
D:
$\frac{16}{15}x^{3}$
The seventh term of $(x^{3}-\frac{1}{x})^{3}$ is
Difficulty: Easy
A:
71
B:
-22
C:
27
D:
28
The coefficient of the middle term of $[\frac{x}{2}-\frac{2}{x^{2}}]^{6}$ after simplification is
Difficulty: Easy
A:
1760
B:
-193
C:
223
D:
None
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