Question

What is the value of cot(640)

Answer 1

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ANSWER

It is always possible to add, or subtract, 360° to an angle to obtain an equivalent one. The symbol = in the following passages is not a real =, but only an equivalent symbol.

It is always possible to add, or subtract, 360° to an angle to obtain an equivalent one. The symbol = in the following passages is not a real =, but only an equivalent symbol.640°−360°=280°.

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