# Lesson Worksheet: Simplifying Trigonometric Expressions Using Trigonometric Identities Mathematics

In this worksheet, we will practice simplifying trigonometric expressions by applying trigonometric identities.

**Q3: **

Simplify .

- A
- B
- C
- D

**Q4: **

Simplify .

- A
- B
- C
- D

**Q5: **

Simplify .

- A
- B
- C
- D1

**Q6: **

Simplify .

- A
- B
- C1
- D

**Q7: **

Simplify .

- A
- B
- C
- D

**Q12: **

Which of the following is not a trigonometric identity?

- A
- B

**Q13: **

Which of the following expressions is equal to ?

- A
- B
- C
- D
- E

**Q14: **

Which of the following is a trigonometric identity?

- A
- B

**Q15: **

Simplify .

- A
- B
- C1
- D

**Q17: **

Simplify in its simplest form.

**Q19: **

Simplify .

**Q20: **

Simplify .

- A
- B
- C
- D

**Q23: **

For any , what is ?

- A
- B
- C
- D
- E

**Q24: **

For any , what is ?

- A
- B
- C
- D
- E

**Q25: **

For any , what is ?

- A
- B
- C
- D
- E