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Tamil Nadu Board of Secondary EducationHSC Commerce Class 12

A firm’s marginal revenue function is MR = e20e-x10(1-x10). Find the corresponding demand function

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Question

A firm’s marginal revenue function is MR = `20"e"^((-x)/10) (1 - x/10)`. Find the corresponding demand function

Sum
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Solution

M.R = `20"e"^((-x)/10) (1 - x/10)`

M.R = `20"e"^((-1)/10^((x))) [1 + ((-1)/10) x]`

R = `int "MR"  "d"x`

R = `int 20["e"^((-1)/10^((x))) (x)]  "d"x`

R = `20x ["e"^((-1)/10^((x)))] + "c"`

When x = 0

R = 0

⇒ k = 0

∴ R = `(20x  "e"^(- 1/10x))/x`

Demand function p = `"R"/x = (20x  "e"^(- 1/10x))/x`

∴ p = `20  "e"^((-x)/10)`

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Application of Integration in Economics and Commerce
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Chapter 3: Integral Calculus – 2 - Exercise 3.2 [Page 72]

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Samacheer Kalvi Business Mathematics and Statistics [English] Class 12 TN Board
Chapter 3 Integral Calculus – 2
Exercise 3.2 | Q 13 | Page 72

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