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Tamil Nadu Board of Secondary EducationHSC Science Class 12

A from produces two types of calculates each week, x number of type A and y number of type B. The weekly revenue and cost functions = (in rupees) are R(x, y) = 80x + 90y + 0.04xy – 0.05x2 – 0.05y - Mathematics

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Question

A from produces two types of calculates each week, x number of type A and y number of type B. The weekly revenue and cost functions = (in rupees) are R(x, y) = 80x + 90y + 0.04xy – 0.05x2 – 0.05y2 and C (x, y) = 8x + 6y + 2000 respectively. Find the profit function P(x, y)

Sum

Solution

Profit = Revenue – Cost

= (80x + 90y + 0.04 xy – 0.05 x2 – 0.05y2) – (8x + 6y + 2000)

= 80x + 90y + 0.04 xy – 0.05 x2 – 0.05y2 – 8x – 6y – 2000

P(x, y) = 72x + 84y + 0.04 xy – 0.05 x2 – 0.05y2 – 2000

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Partial Derivatives
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Chapter 8: Differentials and Partial Derivatives - Exercise 8.4 [Page 80]

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Samacheer Kalvi Mathematics - Volume 1 and 2 [English] Class 12 TN Board
Chapter 8 Differentials and Partial Derivatives
Exercise 8.4 | Q 10. (i) | Page 80

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