9000032005
Level:
A
Evaluate
\(\mathop{\mathrm{cotg}}\nolimits \left ( \frac{\pi }{2}\right )\).
\(0\)
\(-\sqrt{3}\)
\(-\frac{\sqrt{2}}
{2} \)
\(\sqrt{3}\)
\(\frac{\sqrt{2}}
{2} \)
\(1\)
Sine, cosine, tangent and cotangent
9000032108
Level:
A
Evaluate
\(\cos \left (\frac{-3\pi }
{2} \right )\).
\(0\)
\(-\frac{\sqrt{2}}
{2} \)
\(- 1\)
\(1\)
\(-\frac{\sqrt{3}}
{3} \)
\(\sqrt{3}\)
9000032006
Level:
A
Evaluate
\(\mathop{\mathrm{cotg}}\nolimits \left (0\right )\).
undefined
\(-\sqrt{3}\)
\(-\frac{\sqrt{2}}
{2} \)
\(\frac{\sqrt{3}}
{3} \)
\(-\frac{\sqrt{3}}
{3} \)
\(\frac{\sqrt{2}}
{2} \)
9000032109
Level:
A
Evaluate
\(\sin \left ( \frac{\pi }{4}\right )\).
\(\frac{\sqrt{2}}
{2} \)
\(-\frac{\sqrt{2}}
{2} \)
\(0\)
\(-\frac{\sqrt{3}}
{3} \)
\(\frac{\sqrt{3}}
{3} \)
\(1\)
9000032007
Level:
A
Evaluate
\(\mathop{\mathrm{cotg}}\nolimits \left (\frac{5\pi }
{2}\right )\).
\(0\)
\(\sqrt{3}\)
\(-\frac{\sqrt{2}}
{2} \)
\(-\frac{\sqrt{3}}
{3} \)
\(\frac{\sqrt{3}}
{3} \)
undefined
9000032110
Level:
A
Evaluate
\(\cos \left ( \frac{\pi }{4}\right )\).
\(\frac{\sqrt{2}}
{2} \)
\(0\)
\(-\sqrt{3}\)
\(-\frac{\sqrt{2}}
{2} \)
\(- 1\)
\(\sqrt{3}\)
9000032008
Level:
A
Evaluate
\(\mathop{\mathrm{cotg}}\nolimits \left (-\frac{3\pi }
{2}\right )\).
\(0\)
\(\frac{\sqrt{2}}
{2} \)
\(\sqrt{3}\)
undefined
\(1\)
\(-\frac{\sqrt{2}}
{2} \)
9000032111
Level:
A
Evaluate
\(\sin \left ( \frac{\pi }{3}\right )\).
\(\frac{\sqrt{3}}
{2} \)
\(-\frac{\sqrt{3}}
{2} \)
\(\frac{\sqrt{2}}
{2} \)
\(0\)
\(\sqrt{3}\)
\(\frac{1}
{2}\)
9000032009
Level:
A
Evaluate
\(\mathop{\mathrm{tg}}\nolimits \left ( \frac{\pi }{4}\right )\).
\(1\)
\(\frac{\sqrt{3}}
{3} \)
\(0\)
\(\frac{\sqrt{2}}
{2} \)
\(-\frac{\sqrt{2}}
{2} \)
\(- 1\)
9000032112
Level:
A
Evaluate
\(\cos \left ( \frac{\pi }{3}\right )\).
\(\frac{1}
{2}\)
\(\frac{\sqrt{3}}
{2} \)
\(-\frac{\sqrt{3}}
{2} \)
\(\sqrt{3}\)
\(-\frac{\sqrt{2}}
{2} \)
\(\frac{\sqrt{2}}
{2} \)