First, make sure the angular mode is set to degrees. If the "DEG" annunciator does not show on the screen, press the DRG key until it does. Then, to find the cosine of 33.8 degrees, press 3 3 . 8 COS =
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First, make sure the angular mode is set to degrees. If the "DEG" annunciator does not show on the screen, press the DRG key until it does. Then, to find the cosine of 33.8 degrees, press
3 3 . 8 COS =