T ( 17.5 \% ) fc
Evaluate
\frac{7Tcf}{40}
Differentiate w.r.t. T
\frac{7cf}{40}
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T\times \frac{175}{1000}fc
Expand \frac{17.5}{100} by multiplying both numerator and the denominator by 10.
T\times \frac{7}{40}fc
Reduce the fraction \frac{175}{1000} to lowest terms by extracting and canceling out 25.
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