Đề thi HK2 môn Toán lớp 11 THPT Trần Hưng Đạo TPH...

A $\dfrac{3}{2}$

B $- \dfrac{3}{2}$

C $+ \infty$

D $- \infty$

A $- 5$

B $5$

C $+ \infty$

D $- \infty$

A $\frac{1}{9}$

B $\frac{1}{{10}}$

C $\frac{1}{{12}}$

D $+ \infty$

A $a = \frac{1}{6}$

B $a = \frac{1}{8}$

C $a = \frac{1}{{10}}$

D $a = \frac{1}{{12}}$

A $\dfrac{{7x + 4}}{{\sqrt {7{x^2} + 8x + 5} }}$

B $\dfrac{{7x + 4}}{{2\sqrt {7{x^2} + 8x + 5} }}$

C $\dfrac{{14x + 8}}{{\sqrt {7{x^2} + 8x + 5} }}$

D $\dfrac{{7x + 8}}{{2\sqrt {7{x^2} + 8x + 5} }}$

A $\frac{{1 - x}}{{\sqrt x {{\left( {x + 1} \right)}^2}}}$

B $\frac{{x - 1}}{{2\sqrt x {{\left( {x + 1} \right)}^2}}}$

C $\frac{{x - 1}}{{\sqrt x {{\left( {x + 1} \right)}^2}}}$

D $\frac{{1 - x}}{{2\sqrt x {{\left( {x + 1} \right)}^2}}}$

A $24\sin 8x{\cos ^2}8x$

B $- 24\sin 8x{\cos ^2}8x$

C $- 24{\sin ^2}8x\cos 8x$

D $24{\sin ^2}8x\cos 8x$

A $y = 9x + 13$

B $y = 9x + 15$

C $y = 9x + 17$

D $y = 9x + 19$