A | math4u.vsb.cz

9000032008

Level:

A

Evaluate

cotg (- \frac{3 π}{2})

.

0

\frac{\sqrt{2}}{2}

\sqrt{3}

undefined

1

- \frac{\sqrt{2}}{2}

9000032111

Level:

A

Evaluate

\sin (\frac{π}{3})

.

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

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

\frac{\sqrt{2}}{2}

0

\sqrt{3}

\frac{1}{2}

9000032009

Level:

A

Evaluate

tg (\frac{π}{4})

.

1

\frac{\sqrt{3}}{3}

0

\frac{\sqrt{2}}{2}

- \frac{\sqrt{2}}{2}

- 1

9000032112

Level:

A

Evaluate

\cos (\frac{π}{3})

.

\frac{1}{2}

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

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

\sqrt{3}

- \frac{\sqrt{2}}{2}

\frac{\sqrt{2}}{2}

9000032010

Level:

A

Evaluate

cotg (\frac{π}{4})

.

1

\frac{\sqrt{2}}{2}

0

- \frac{\sqrt{3}}{3}

\frac{\sqrt{3}}{3}

undefined

9000032113

Level:

A

Evaluate

\sin (\frac{π}{6})

.

\frac{1}{2}

\frac{\sqrt{2}}{2}

- \frac{1}{2}

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

\sqrt{3}

0

9000032011

Level:

A

Evaluate

tg (\frac{π}{3})

.

\sqrt{3}

0

- \sqrt{3}

- \frac{\sqrt{3}}{3}

- \frac{\sqrt{2}}{2}

\frac{\sqrt{3}}{3}

9000032114

Level:

A

Evaluate

\cos (\frac{π}{6})

.

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

\frac{\sqrt{2}}{2}

- \frac{1}{2}

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

0

- \frac{\sqrt{2}}{2}

9000032013

Level:

A

Evaluate

tg (\frac{π}{6})

.

\frac{\sqrt{3}}{3}

0

- \sqrt{3}

- \frac{\sqrt{3}}{3}

\frac{\sqrt{2}}{2}

- \frac{\sqrt{2}}{2}

9000033702

Level:

A

Find the domain of the following expression.

\sqrt{- x^{2} + 7 x - 12} - \frac{1}{x}

[3; 4]

R ∖ {0}

R ∖ {0; 3; 4}

(3; 4)

(- \infty; 3) \cup (4; \infty)

(- \infty; 3] \cup [4; \infty)