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36-\frac{720\times 18}{360}
Divide 720 by \frac{360}{18} by multiplying 720 by the reciprocal of \frac{360}{18}.
36-\frac{12960}{360}
Multiply 720 and 18 to get 12960.
36-36
Divide 12960 by 360 to get 36.
0
Subtract 36 from 36 to get 0.
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Limits
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