Trigonometric functions I - Normal

Question 1: Convert

25 °

to radians.

A

\frac{5 π}{36}

B

\frac{7 π}{36}

C

\frac{2 π}{3}

D

\frac{π}{2}

Question 2: Convert

\frac{11 π}{6}

to degrees.

A

45 °

B

270 °

C

330 °

D

225 °

Question 3: A radian measure of an

a r c (α)

in a circle equals

\frac{3 π}{4}

while radius

(R)

equals

5 c m

. What is the length

(l)

of this arc?

A

\frac{15 π}{4}

B

\frac{3 π}{20}

C

\frac{20 π}{3}

D

\frac{4 π}{15}

Question 4: Solve the expression

3 t g 180 ° - 4 c t g 90 °

.

A

- 7

B

0

C

3

D

- 1

Question 5: Solve the expression

\cos (- 60 °) + c t g (- 45 °)

.

A

0

B

- \frac{1}{2}

C

- 1

D

1

Test: Trigonometric functions I - Normal