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What is the value of sin(90° - A)?

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Question: What is the value of sin(90° - A)?

Options:

  1. cos A
  2. sin A
  3. tan A
  4. sec A

Correct Answer: cos A

Solution: 

Using the co-function identity, sin(90° - A) = cos A.

What is the value of sin(90° - A)?

Practice Questions

Q1
What is the value of sin(90° - A)?
  1. cos A
  2. sin A
  3. tan A
  4. sec A

Questions & Step-by-Step Solutions

What is the value of sin(90° - A)?
  • Step 1: Understand that sin(90° - A) is a trigonometric function.
  • Step 2: Learn about the co-function identity, which states that sin(90° - A) equals cos A.
  • Step 3: Apply the co-function identity to find that sin(90° - A) = cos A.
No concepts available.
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