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2 years ago

15

Determine the sign of cos pi divided by seven without using a calculator.

1 answer:

7nadin3 [17]2 years ago

3 0

Check the picture below.

now, when you get a fraction of π for the angle, is just really like grabbing π and dividing it in that many pieces, and the angle, is a fraction of π and therefore on those pieces.

π/7 is clearly less than 7π/7 which is π, notice the 7-pieces split in the picture.

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son4ous [18]

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2 years ago

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eduard

Answer:

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1 year ago

Read 2 more answers

No explanation required, just a quick answer please!

hram777 [196]

The answer to the question

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3 years ago

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Ugo [173]

Answer:

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Step-by-step explanation:

we know that

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substitute

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