Evaluate
60acrt
Differentiate w.r.t. a
60crt
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300arct\times \frac{1}{5}
Reduce the fraction \frac{20}{100} to lowest terms by extracting and canceling out 20.
\frac{300}{5}arct
Multiply 300 and \frac{1}{5} to get \frac{300}{5}.
60arct
Divide 300 by 5 to get 60.
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