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Graded Assignment
Name:
MTH403B: Pre-Calculus/Trigonometry | Unit 4 | 4.4 Practice
Date:
Practice
Trigonometric Identities
Answer the following questions to practice what you’ve learned. Write your responses in the space provided and
turn the assignment in to your instructor.
For questions 1 – 5, decide whether the equation is a trigonometric identity. Explain your reasoning.
1. cos2 x(1 + tan2 x) = 1
Score
Answer: Yes
2. sec x tan x(1 – sin2 x) = sin x
Score
Answer:No
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Graded Assignment
3. csc x(2sin x - √2) = 0
MTH403B: Pre-Calculus/Trigonometry | Unit 4 | 4.4 Practice
Score
Answer: No
4. cos2(2x) – sin2(2x) = 0
Score
Answer: No
5. sin2 �...