The slope of the tangent to a curve C : y=y(x) at any point [x, y) on it is \(\frac{2 e ^{2 x }-6 e ^{- x }+9}{2+9 e ^{-2 x }}\) If C passes through the points \(\left(0, \frac{1}{2}+\frac{\pi}{2 \sqrt{2}}\right) \)and \(\left(\alpha, \frac{1}{2} e ^{2 \alpha}\right)\)$ then \(e ^\alpha\) is equal to :
Let α be a root of the equation 1 + x2 + x4 = 0. Then the value of α1011 + α2022 – α3033 is equal to
If m is the slope of a common tangent to the curves\(\frac{x²}{16} + \frac{y²} {9} = 1\)and x2 + y2 = 12, then 12m2 is equal to:
Let the eccentricity of an ellipse \(\frac {x^2}{a^2}+\frac {y^2}{b^2}=1\), \(a>b\), be \(\frac 14\). If this ellipse passes through the point \((−4\sqrt {\frac 25},3)\), then \(a^2 + b^2\) is equal to :
The mean and variance of a binomial distribution are α and α/3, respectively. If P(X = 1) = 4/243 then P(X = 4 or 5) is equal to :
If y = y (x) is the solution of the differential equation\((1 + e^{2x})\frac{dy}{dx} + 2(1 + y^2)e^x = 0\)and y(0) = 0, then\(6 \left( y'(0) + \left( \log_e\left(\sqrt{3}\right) \right)^2 \right)\)is equal to
The general solution of the differential equation \(\left(x-y^2\right) d x+y\left(5 x+y^2\right) d y=0\) is :