What is the value cos(72^circ)? Write your answer in decimals.

FizeauV 2020-10-26 Answered
What is the value cos(72)? Write your answer in decimals.
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Expert Answer

Demi-Leigh Barrera
Answered 2020-10-27 Author has 97 answers

The formula:
cos(x)=sin(90x)
Substitute the given angle:
cos(72)=sin(9072)
cos(72)=sin(18)
=2354
0.30901

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