Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • School
  • Explain solution RD Sharma class 12 chapter Differential Equation exercise 21.2 question 15.3 subquestion (iii) maths

Explain solution RD Sharma class 12 chapter Differential Equation exercise 21.2 question 15.3 subquestion (iii) maths

Answers (1)

Answer:

 4xy\frac{\mathrm{d} y}{\mathrm{d} x}+x^{2}-2y^{2}=0

Hint:

 Using the formula (a+b)2 and differentiating the given equation

Given:

 (x-a)^{2}+2y^{2}=a^{2}

Solution:

\begin{aligned} &2(x-a)+2y.2\frac{\mathrm{d} y}{\mathrm{d} x}=0\\ &(x-a)=-2y\frac{\mathrm{d} y}{\mathrm{d} x}\\ &a=x+2y\frac{\mathrm{d} y}{\mathrm{d} x}\\ &\left ( 2+\frac{\mathrm{d} y}{\mathrm{d} x} \right )^{2}+2y^{2}=x^{2}+\left ( 2+\frac{\mathrm{d} y}{\mathrm{d} x} \right )^{2}+2x.2y\frac{\mathrm{d} y}{\mathrm{d} x} \end{aligned}

4xy\frac{\mathrm{d} y}{\mathrm{d} x}+x^{2}-2y^{2}=0

Posted by

Gurleen Kaur

View full answer

Crack CUET with india's "Best Teachers"

  • HD Video Lectures
  • Unlimited Mock Tests
  • Faculty Support
cuet_ads

Similar Questions

Latest Question