Evaluate
\frac{1}{2}=0.5
Factor
\frac{1}{2} = 0.5
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\cos(\frac{1}{3}\pi )
Combine \frac{\pi }{2} and -\frac{\pi }{6} to get \frac{1}{3}\pi .
\frac{1}{2}
Get the value of \cos(\frac{1}{3}\pi ) from trigonometric values table.
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Matrix
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Simultaneous equation
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Limits
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