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Find the value of trignometric function: cos 2pie÷3 cos (-450°) fast please​

Find the value of trignometric function: cos 2pie÷3 cos (-450°) fast please​
asked 129k views
4 votes
Find the value of trignometric function:
cos 2pie÷3
cos (-450°) fast please​

asked
User Fgkolf
by
8.2k points

1 Answer

2 votes

Explanation:

cos2π/3 = -cosπ/3 = -0.5.

cos(-450°) = cos450° = cos90° = 0.

answered
User Vizu
by
8.0k points
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