Evaluate
\frac{1}{2}=0.5
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\cos(-60)
Subtract 150 from 90 to get -60.
\cos(60)
Use the property \cos(-x)=\cos(x).
\frac{1}{2}
Get the value of \cos(60) from trigonometric values table.
Examples
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Matrix
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Simultaneous equation
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Limits
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