PashaJ601649 PashaJ601649

26-10-2022
Mathematics

contestada

use reference angle to find the exact value of the expression, do not use a calculatorcos 225 degrees

Respuesta :

IvanF318999 IvanF318999

26-10-2022

This is a simple question, First, let's take a look at this table of reference angles:

Now we can calculate as follows:

And that is the final answer.

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