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Riya Verma
Subject: Maths
, asked on 1/3/18
Plz check whether it is correct or not because the answer is -xdy/dx square whereas i m getting in plus
Answer
2
Shanaya
Subject: Maths
, asked on 26/2/18
Q.20
$\mathbf{20}\mathbf{.}\mathbf{}\mathrm{Solve}:\sqrt{1+{\mathrm{x}}^{2}+{\mathrm{y}}^{2}+{\mathrm{x}}^{2}{\mathrm{y}}^{2}}\mathrm{dx}+\mathrm{xydy}=0\phantom{\rule{0ex}{0ex}}\phantom{\rule{0ex}{0ex}}\left[\sqrt{1+{\mathrm{y}}^{2}}=-\sqrt{1+{\mathrm{x}}^{2}-\mathrm{log}\left|\frac{\sqrt{1+{\mathrm{x}}^{2}}}{\mathrm{x}}-\frac{1}{\mathrm{x}}\right|}+\mathrm{C}\right]$
Answer
1
Shanaya
Subject: Maths
, asked on 26/2/18
12) Show that the differential equation
$2y{e}^{x/y}dx+(y-2x{e}^{\frac{x}{y}})dy=0$
is homogenous and find the particular solution if y (0) = 1.
Answer
1
Vinuthna Terala
Subject: Maths
, asked on 25/2/18
Q10 asap
Q.10. Form the differential equation of the family of circles touching the x-axis at origin.
Answer
2
Shanaya
Subject: Maths
, asked on 23/2/18
How did we integrated RHS and git the answer in log?
$y\left({x}^{2}-1\right)=\int \frac{1}{{x}^{2}-1}dx+C\phantom{\rule{0ex}{0ex}}y\left({x}^{2}-1\right)=\frac{1}{2}\mathrm{log}\left|\frac{x-1}{x+1}\right|+C.$
Answer
3
Shvaetha Kumaravel
Subject: Maths
, asked on 20/2/18
Solve the differential equation : (2x+3+2y)dy/dx = (x+1+y)
Answer
1
Shvaetha Kumaravel
Subject: Maths
, asked on 20/2/18
y=sin^-1(root 1-x + root 1+x / 2) find dy/dx
Answer
2
Brendan
Subject: Maths
, asked on 20/2/18
Q. Find the order and degree of the differential equation
$\frac{{d}^{2}y}{d{x}^{2}}+\mathrm{sin}\left(\frac{dy}{dx}\right)=0$
Answer
2
Brendan
Subject: Maths
, asked on 20/2/18
Q. Write the order and degree of the differential equation
$y=x\frac{dy}{dx}+a\sqrt{1+{\left(\frac{dy}{dx}\right)}^{2}}$
Answer
1
Brendan
Subject: Maths
, asked on 20/2/18
Q. Solve the differential equation
$\frac{dy}{dx}=secy$
, given y (0) = 1.
Answer
1
Brendan
Subject: Maths
, asked on 19/2/18
Q. Solve the differential equation
$\frac{dy}{dx}+\sqrt{\frac{1-{y}^{2}}{1-{x}^{2}}}=0$
.
Answer
1
Brendan
Subject: Maths
, asked on 19/2/18
Q. Find the order and degree of the differential equation
${\left[5+{\left(\frac{dy}{dx}\right)}^{2}\right]}^{\frac{5}{3}}={x}^{5}\left(\frac{{d}^{2}y}{d{x}^{2}}\right)$
Answer
2
Brendan
Subject: Maths
, asked on 19/2/18
Q. Write the order and degree of the differential equation
$2\frac{{d}^{2}y}{d{x}^{2}}+3\sqrt{1-{\left(\frac{dy}{dx}\right)}^{2}-y}=0$
.
Answer
1
Brendan
Subject: Maths
, asked on 19/2/18
Q. Find the order and degree of the differential equation
$y=\frac{dy}{dx}+\sqrt{1+{\left(\frac{dy}{dx}\right)}^{2}}$
Answer
1
Aditi Sharma
Subject: Maths
, asked on 17/2/18
Is this correct ?
Answer
2
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$\mathbf{20}\mathbf{.}\mathbf{}\mathrm{Solve}:\sqrt{1+{\mathrm{x}}^{2}+{\mathrm{y}}^{2}+{\mathrm{x}}^{2}{\mathrm{y}}^{2}}\mathrm{dx}+\mathrm{xydy}=0\phantom{\rule{0ex}{0ex}}\phantom{\rule{0ex}{0ex}}\left[\sqrt{1+{\mathrm{y}}^{2}}=-\sqrt{1+{\mathrm{x}}^{2}-\mathrm{log}\left|\frac{\sqrt{1+{\mathrm{x}}^{2}}}{\mathrm{x}}-\frac{1}{\mathrm{x}}\right|}+\mathrm{C}\right]$

Q.10. Form the differential equation of the family of circles touching the x-axis at origin.

$y\left({x}^{2}-1\right)=\int \frac{1}{{x}^{2}-1}dx+C\phantom{\rule{0ex}{0ex}}y\left({x}^{2}-1\right)=\frac{1}{2}\mathrm{log}\left|\frac{x-1}{x+1}\right|+C.$