Use the sum and difference identities to determine the exact value of the following expression.sin(255°)
Question
Solution 1
Sure, let's use the sum and difference identities to find the exact value of sin(255°).
First, we need to express 255° as a sum or difference of angles that we know the sine of. The most common angles are 30°, 45°, 60°, 90°, 180°, etc.
255° can be expressed as 180° + 75°.
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