Find the value of $(x^{2}+y^{2})$
49548
If $(a + ib)^3 = 8$, prove that $a^2 + b^2 = 4$
25065
What is $\arctan(x) + \arctan(y)$
121353
If $x$ and $y$ are not both $0$ then $ x^2 +xy +y^2> 0$
11707
If $x\sqrt{1+y}+y\sqrt{1+x}=0$ find $y'$
64448
Find a quadratic equation with root $x_1^2$ and $x_2^2$
119691
$5^{x}+2^{y}=2^{x}+5^{y} =\frac{7}{10}$ Work out the values of $\frac{1}{x+y}$
78719
Solve the DE $yy^{\prime}+x=\sqrt{x^2+y^2}$
140622
Find the value of : $\lim_{x \to \infty} \sqrt{4x^2 + 4} - (2x + 2)$
73073
Differentiating $y=x^{2}$
30307
Find the value of $k$ in $\frac{b+c}{\sqrt{a}}+\frac{c+a}{\sqrt{b}}+\frac{a+b}{\sqrt{c}} \ge \sqrt{a}+\sqrt{b}+\sqrt{c}+k$
41300
Show $(x+y)^a > x^a + y^a$ for $x,y>0$ and $a>1$
20481
Volume enclosed by $(x^2+y^2+z^2)^2=x$
53725
Factor $(x+y)^4+x^4+y^4$
156555
Inequality $\sqrt{1+x^2}+\sqrt{1+y^2}+\sqrt{1+z^2} \le \sqrt{2}(x+y+z)$
100900
Finding maxima and minima of $f(x,y)= x^4 + y^4 - 2x^2 - 2y^2 + 4xy$
26935
find all the value of x,y z?
157918
Finding the derivative of $x^x$