Trắc nghiệm Tính các tỉ số lượng giác của tam giác vuông Toán 9 có đáp án

$\dfrac{{MN}}{{NP}}$

$\dfrac{{MP}}{{NP}}$

$\dfrac{{MN}}{{MP}}$

$\dfrac{{MP}}{{MN}}$

$\sin B = 0,6;\cos B = 0,8$

$\sin B = 0,8;\cos B = 0,6$

$\sin B = 0,4;\cos B = 0,8$

$\sin B = 0,6;\cos B = 0,4$

$\tan C \approx 0,87$

$\tan C \approx 0,86$

$\tan C \approx 0,88$

$\tan C \approx 0,89$

$\cos C \approx 0,76$

$\cos C \approx 0,77$

$\cos C \approx 0,75$

$\cos C \approx 0,78$

$\sin \alpha  = \dfrac{{\sqrt {21} }}{{25}};\cot \alpha  = \dfrac{{3\sqrt {21} }}{{21}}$

$\sin \alpha  = \dfrac{{\sqrt {21} }}{5};\cot \alpha  = \dfrac{5}{{\sqrt {21} }}$

$\sin \alpha  = \dfrac{{\sqrt {21} }}{3};\cot \alpha  = \dfrac{3}{{\sqrt {21} }}$

$\sin \alpha  = \dfrac{{\sqrt {21} }}{5};\cot \alpha  = \dfrac{2}{{\sqrt {21} }}$

\(\dfrac{{MN}}{{NP}}\)

\(\dfrac{{MP}}{{NP}}\)

\(\dfrac{{MN}}{{MP}}\)

\(\dfrac{{MP}}{{MN}}\)

\(\sin B = \dfrac{1}{{\sqrt 3 }};\cos B = \dfrac{{2\sqrt 3 }}{3}\)

\(\sin B = \dfrac{{\sqrt 5 }}{5};\cos B = \dfrac{{2\sqrt 5 }}{5}\)     

\(\sin B = \dfrac{1}{2};\cos B = \dfrac{2}{{\sqrt 5 }}\)

\(\sin B = \dfrac{{2\sqrt 5 }}{5};\cos B = \dfrac{{\sqrt 5 }}{5}\)

\(\tan C \approx 0,67\)

\(\tan C \approx 0,5\)

\(\tan C \approx 1,4\)

\(\tan C \approx 1,5\)

\(\cos C \approx 0,79\)

\(\cos C \approx 0,69\)

\(\cos C \approx 0,96\)

\(\cos C \approx 0,66\)

\(\sin \alpha  = \dfrac{4}{{\sqrt 7 }};\tan \alpha  = \dfrac{{\sqrt 7 }}{3}\)

\(\sin \alpha  = \dfrac{{\sqrt 7 }}{4};\tan \alpha  = \dfrac{3}{{\sqrt 7 }}\)

\(\sin \alpha  = \dfrac{{\sqrt 7 }}{4};\tan \alpha  = \dfrac{{\sqrt 7 }}{3}\)

\(\sin \alpha  = \dfrac{{\sqrt 7 }}{3};\tan \alpha  = \dfrac{{\sqrt 7 }}{4}\)

\(\sin A = \dfrac{{120}}{{169}}\)

\(\sin A = \dfrac{{60}}{{169}}\)

\(\sin A = \dfrac{5}{6}\)

\(\sin A = \dfrac{{10}}{{13}}\)

\(\dfrac{3}{4}\)

\(\dfrac{3}{5}\)

\(\dfrac{4}{3}\)

\(\dfrac{4}{5}\)  

\(\cot 30^\circ \).

\(\cos 45^\circ \).

\(\sin 45^\circ \).

\(\tan 30^\circ \).

\(\sqrt 3 \).

\(\frac{{\sqrt 3 }}{2}\).

\(\frac{{\sqrt 3 }}{3}\).

\(\frac{1}{2}\).

\(\frac{1}{5}\).

\( - \frac{1}{5}\).

\(5\).

\( - 5\).

\(\sin C = \frac{{AB}}{{BC}}\).

\(\sin C = \frac{{BC}}{{AC}}\).

\(\sin C = \frac{{AC}}{{BC}}\).

\(\sin C = \frac{{AB}}{{AC}}\).

\(\frac{4}{3}\).

\(\frac{3}{4}\).

\(\frac{4}{5}\).

\(\frac{5}{4}\).

\(\frac{{13}}{5}\).

\(\frac{5}{{13}}\).

\(\frac{{12}}{5}\).

\(\frac{5}{{12}}\).

\(\frac{3}{5}\).

\(\frac{4}{5}\).

\(\frac{3}{4}\).

\(\frac{4}{3}\).

\(\cot C = \frac{{3\sqrt 5 }}{5}\).

\(\cot C = \frac{{\sqrt 5 }}{2}\).

\(\cot C = \frac{6}{5}\).

\(\cot C = \frac{{6\sqrt 5 }}{5}\).