A.\(2b - 2a + 1\)
B.\(2b - 2a - 2\)
C.\(2b - 2a + 2\)
D.\(2b - 2a\)

A.25
B.26
C.28
D.24

A.\(V = \dfrac{7}{2}\)
B.\(V = 7\)
C.\(V = \dfrac{{28}}{3}\)
D.\(V = 14\)

A.\(\left[ \begin{array}{l}m > 1\\ - 4 \le m <  - 1\end{array} \right.\)
B.\(m > 1\)
C.\( - 4 \le m <  - 1\)
D.\( - 4 \le m \le  - 1\)

A.14
B.7
C.\(\dfrac{1}{7}\)
D.\(\dfrac{7}{2}\)

A.\(\dfrac{{{a^3}\sqrt 3 }}{2}\)
B.\({a^3}\sqrt 6 \)
C.\(2\sqrt 3 {a^3}\)
D.\(\dfrac{{{a^3}\sqrt 3 }}{3}\)

A.4
B.5
C.6
D.3

A.\(\dfrac{1}{5}\)
B.\(\dfrac{1}{4}\)
C.\(\dfrac{1}{6}\)
D.\(\dfrac{1}{8}\)

A.33
B.27
C.31
D.29

A.\(\dfrac{{7234}}{{7429}}\)
B.\(\dfrac{{7012}}{{7429}}\)
C.\(\dfrac{{7123}}{{7429}}\)
D.\(\dfrac{{7345}}{{7429}}\)