Mathematics, 30.01.2020 14:56, mooreadrian412

What is the exact value for cos(-2/3)?
this should be done without a calculator.
explain the process if possible.

Answers: 3

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What is the exact value for cos(-2/3)?
this should be done without a calculator.
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What is the exact value for cos(-2/3)? this should be done without a calculator. explain the process if possible.

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What is the exact value for cos(-2/3)?
this should be done without a calculator.
explain the process if possible.