اختبار اختيار من متعدد تفاعلي: إيجاد القيم الدقيقة والحلول المثلثية

A

$\frac{\sqrt{6} + \sqrt{2}}{4}$

B

$\frac{\sqrt{6} - \sqrt{2}}{4}$

C

$\frac{\sqrt{2} - \sqrt{6}}{4}$

D

$\frac{1}{2}$

A

$-\frac{1}{2}$

B

$\frac{1}{2}$

C

$-\frac{\sqrt{3}}{2}$

D

$\frac{\sqrt{3}}{2}$

A

$\frac{\sqrt{6} - \sqrt{2}}{4}$

B

$\frac{\sqrt{6} + \sqrt{2}}{4}$

C

$\frac{\sqrt{2} - \sqrt{6}}{4}$

D

$\frac{1}{4}$

A

$\frac{\sqrt{6} + \sqrt{2}}{4}$

B

$\frac{\sqrt{6} - \sqrt{2}}{4}$

C

$\frac{\sqrt{3}}{2}$

D

$\frac{1}{2}$

A

$-\frac{4\sqrt{5}}{9}$

B

$\frac{4\sqrt{5}}{9}$

C

$\frac{1}{9}$

D

$-\frac{1}{9}$

A

$-\frac{161}{289}$

B

$\frac{161}{289}$

C

$\frac{240}{289}$

D

$-\frac{240}{289}$

A

$\frac{\sqrt{5}}{5}$

B

$-\frac{\sqrt{5}}{5}$

C

$\frac{\sqrt{10}}{10}$

D

$\frac{4}{5}$

A

$-\frac{\sqrt{15}}{5}$

B

$\frac{\sqrt{15}}{5}$

C

$-\frac{\sqrt{10}}{5}$

D

$\frac{\sqrt{3}}{5}$

A

$\frac{24}{25}$

B

$-\frac{24}{25}$

C

$\frac{7}{25}$

D

$-\frac{7}{25}$

A

$-\frac{3}{5}$

B

$\frac{3}{5}$

C

$-\frac{4}{5}$

D

$\frac{4}{5}$

A

$\theta = 60^\circ + 180^\circ k, \theta = -60^\circ + 180^° k$

B

$\theta = 30^\circ + 180^\circ k, \theta = -30^\circ + 180^° k$

C

$\theta = 45^\circ + 180^\circ k, \theta = -45^\circ + 180^° k$

D

$\theta = 90^\circ + 180^\circ k$