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If sin A = 0, what is the value of A? (2019)

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Question: If sin A = 0, what is the value of A? (2019)

Options:

  1. 0°
  2. 90°
  3. 180°
  4. 360°

Correct Answer: 0°

Exam Year: 2019

Solution: 

Sin A = 0 at A = 0°, 180°, and 360°. The principal value is 0°.

If sin A = 0, what is the value of A? (2019)

Practice Questions

Q1
If sin A = 0, what is the value of A? (2019)
  1. 0°
  2. 90°
  3. 180°
  4. 360°

Questions & Step-by-Step Solutions

If sin A = 0, what is the value of A? (2019)
  • Step 1: Understand that sin A represents the sine of angle A.
  • Step 2: Know that the sine function equals 0 at specific angles.
  • Step 3: Identify the angles where sin A = 0: these are 0°, 180°, and 360°.
  • Step 4: Recognize that the principal value (the most common or first value) is 0°.
  • Trigonometric Functions – Understanding the values of sine function and its periodic nature.
  • Principal Value – Identifying the principal value of an angle in trigonometric functions.
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