# Worksheet: Evaluating Trigonometric Functions with Special Angles

Q1:

Find the value of given and are complementary angles in the ratio . Give the answer to four decimal places.

Q2:

Find the value of given .

• A
• B
• C
• D

Q3:

Find given and is an acute angle.

• A
• B
• C
• D

Q4:

Find the value of without using a calculator, given where is an acute angle.

• A2
• B
• C
• D
• E1

Q5:

Find the value of without using a calculator, given where is an acute angle.

• A
• B2
• C1
• D0

Q6:

Find the value of without using a calculator, given where is an acute angle.

• A
• B
• C
• D
• E3

Q7:

Find the value of .

• A8
• B4
• C
• D

Q8:

Find the value of in degrees given where is an acute angle.

Q9:

Find the value of .

• A
• B
• C
• D

Q10:

Find the value of given .

• A
• B
• C
• D

Q11:

Find the value of .

• A
• B
• C
• D

Q12:

Find the value of .

• A
• B
• C
• D

Q13:

Find the value of without using a calculator.

• A
• B
• C
• D

Q14:

Find the value of in degrees given where is an acute angle.

• A
• B
• C
• D

Q15:

Find the value of without using a calculator.

• A
• B1
• C
• D0
• E

Q16:

Find given and .

Q17:

Find the value of .

• A
• B
• C
• D