Evaluate
68000
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\frac{34000}{\frac{1}{2}}
Get the value of \cos(60) from trigonometric values table.
34000\times 2
Divide 34000 by \frac{1}{2} by multiplying 34000 by the reciprocal of \frac{1}{2}.
68000
Multiply 34000 and 2 to get 68000.
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