A.\(5\)
B.\(\sqrt {13} \)
C.\(\sqrt 5 \)
D.\(13\)

A.\( - 2\)
B.\(3i\)
C.\(3\)
D.\( - 2i\)

A.\(2 + {\log _2}a\)
B.\(18{\log _2}a\)
C.\(3{\log _2}a\)
D.\(2{\log _2}a\)

A.\(\dfrac{4}{3}{a^3}\)
B.\(16{a^3}\)
C.\(4{a^3}\)
D.\(\dfrac{{16}}{3}{a^3}\)

A.\(\left( { - 1;0} \right)\)
B.\(\left( { - 2; - 1} \right)\)
C.\(\left( { - 1;1} \right)\)
D.\(\left( {0;1} \right)\)

A.\(x = 1\)
B.\(x = 3\)
C.\(x = 2\)
D.\(x = 4\)

A.\(y' = \dfrac{x}{{\ln 3}}\)
B.\(y' = \dfrac{1}{{x\ln 3}}\)
C.\(y' = x\ln 3\)
D.\(y' = \dfrac{1}{x}\)

A.\({S_{xq}} = 2\pi h\)
B.\({S_{xq}} = 2\pi Rh\)
C.\({S_{xq}} = 2Rh\)
D.\({S_{xq}} = \pi {R^2}h\)

A.\(4\)
B.\(2\)
C.\(1\)
D.\(3\)

A.\(2\)
B.\( - 1\)
C.\( - 4\)
D.\( - 3\)