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What is the exact value of cos (-pi/2)
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What is the exact value of cos (-pi/2)

User Corey Farwell
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1 Answer

1 vote

Answer:

0

Explanation:

-π/2 on a unit circle is the same as 3π/2 or 270°. The cosine of that angle is 0.

User BWG
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5.6k points
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