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29 November, 08:01

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

Positive

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  1. 29 November, 11:30
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    The correct answer would be the second option. The sign of the function cos pi divided by seven would be negative. Evaluating it would give you a negative value. Cosine of pi is the same as cosine of 180 degrees which is equal to negative 1. So, negative 1 divided seven, we have negative 1/7.
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