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

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

Answers (1)

Answer:

3 \frac{d x}{d t}+2 \frac{d y}{d t}=0

Hint:

Here, we use basic concept of area

Given:

Aarushi’seast side speed is 10km/hr. and mall to Mira’s house speed is 15km/hr.

Solution:

Here

\begin{aligned} &15 \frac{d x}{d t}=-10 \frac{d y}{d t} \\ &\text { So, } 3 \frac{d x}{d t}=-2 \frac{d y}{d t} \\ &\text { So, } 3 \frac{d x}{d t}+2 \frac{d y}{d t}=0 \end{aligned}

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