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  • Provide solution RD Sharma maths class 12 chapter 12 Derivative as a Rate Measure exercise case study based question, question 1 sub question 3 maths textbook solution

Provide solution RD Sharma maths class 12 chapter 12 Derivative as a Rate Measure exercise case study based question, question 1 sub question 3 maths textbook solution

Answers (1)

Answer:

2cm^{2}/\sec

Hint: 

Here, we use the formula of area

Given:

 x=8cm

Y=6cm

Solution:

 A=x\times y

                                                                      \frac{dA}{dt}=\frac{ydx}{dt}+x\frac{dy}{dt}

=-5\times 6+8\times 4

=32-30

  =2cm^{2}/\sec

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