Calculus Made Easy

Calculus Made Easy

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(5) The total cost per hour C of lighting a building with N lamps of a certain kind is C =N ( C l t + EPCe 1000 ) , where E is the commercial efficiency (watts per candle), P is the candle power of each lamp, t is the average life of each lamp inanbsp;...

Title:Calculus Made Easy
Publisher:Thompson -


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