Lesson Worksheet: Double- and Half-Angle Trigonometric Identities Mathematics
In this worksheet, we will practice evaluating trigonometric expressions using the double-angle and half-angle identities.
Q1:
Which of the following is equal to ?
- A
- B
- C
- D
- E
Q2:
Find the value of without using a calculator.
- A
- B
- C
- D
Q3:
Find, without using a calculator, the value of given , where .
- A
- B
- C
- D
Q4:
Find, without using a calculator, the value of given where .
- A
- B
- C
- D
Q5:
Simplify .
- A
- B
- C
- D
Q6:
Find, without using a calculator, the value of given .
- A,
- B3,
- C3,
- D,
Q7:
Simplify .
- A
- B
- C
- D
Q8:
Find, without using a calculator, the value of given where .
- A
- B
- C
- D
Q9:
Evaluate without using a calculator.
- A
- B
- C
- D
Q10:
Find the value of given where and where .
- A
- B
- C
- D
- E
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