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Which of the following statements is/are true?
(i) 35\int_0^\infty \frac{x^{4}}{(x + 1)^{8}} \, dx=6\int_0^\infty \frac{x^{5}}{(x^{3} + 1)^{4}} \, dx
(ii) 2\int_1^\infty \frac{(\ln{x})^{2}}{x(\ln{x} + 1)^{5}} \, dx=3\int_0^\infty \frac{x^{5}}{(x^{3} + 1)^{4}} \, dx
(iii) \int_1^\infty \frac{(\ln{x})^{2}}{x(\ln{x} + 1)^{5}} \, dx=\frac{1}{2} and \int_0^\infty \frac{x^{4}}{(x + 1)^{8}} \, dx=\frac{2}{35}
(iv) \beta(\frac{1}{2},\frac{1}{2})=\sqrt{\pi}
Consider the function f(z)=4y+xi where
z=x+iy and
x,y\in\mathbb{R}. Which of the following statements is/are false?
Which of the following statements are true?
(i) \int_0^\infty x\sqrt{x} \ e^{-x^5} \, dx = \frac{\sqrt{\pi}}{5}
(ii) \int_0^\infty 4^{-3x^2} \, dx = \sqrt{\frac{\pi}{3 \ \ln 4}}
(iii) It is given that the n - dimensional volume of an
n - dimensional ball of radius
R is
V_n(R) = \frac{\pi^{n/2} R^n}{\Gamma\left(\frac{n}{2} + 1\right)} then
V_4(1) = \frac{\pi^{2}}{2} and
V_5(1) = \frac{8\pi^{2}}{15}
(iv) Area under the curve defined by f(x) = x^{-1/2}(1 - x)^{-1/2} on the interval
[0, 1] is given by
\int_0^1 x^{-1/2}(1 - x)^{-1/2} \, dx then
\int_0^1 x^{-1/2}(1 - x)^{-1/2} \, dx = \frac{\pi}{2}
Consider the function f(z)=\overline{z}. Which of the following statements is/are true?
Which of the following statements are true?
(i) The integral \int_0^\infty x^{-3/2} e^{-x} \, dx converges, whereas the integral
\int_0^\infty x^{-1} e^{-x} \, dx diverges.
(ii) The integral \int_0^1 x^{-3/2}(1 - x)^{-1/2} \, dx converges, whereas the integral
\int_0^1 x^{-1}(1 - x)^{-1}\, dx diverges.
(iii) The integral \int_0^\infty x^{-1/2} e^{-x} \, dx converges, whereas the integral
\int_0^\infty x^{-1} e^{-x} \, dx diverges.
(iv) The integral \int_0^1 x^{-1/2}(1 - x)^{-1/2} \, dx converges, whereas the integral
\int_0^1 x^{-1}(1 - x)^{-1}\, dx diverges.
(v) The integral \int_0^\infty x^{-3/2} e^{-x} = \Gamma(-\frac{1}{2})
Consider the sequence of functions u_n(x)=\sqrt{x^2+\frac{1}{n}} and suppose
u_n(x) converges to
u(x) for all
x\in\mathbb{R}. Which of the following are True?
When \lim_{n\to\infty} u_n is not existing for a bounded sequance
u_n, the closest thing we can do is to get Limit Superior,
\limsup_{n\to\infty}u_n=\lim_{n\to\infty}\left(\sup_{m\geq n} u_m\right ) and Limit Inferior,
\liminf_{n\to\infty}u_n=\lim_{n\to\infty}\left(\inf_{m\geq n} u_m\right ). Which of the following are possibly True?
Let f(z)=z^3-i and
g(z)=(z+i)^2+1. Which of the following expressions is/are true?
Let f(z) be a function from \mathbb{C} to
\mathbb{C} and
z_0\in \mathbb{C}. Which of the following statements is/are true?
What is True about the radius of convergence R of a power series
\sum_{n=1}^{\infty} a_n (x-a)^n? Power series always converges for
x=a, so let
x\neq a. Taylor series
T_{\infty}(x,a) for a function
f is a power series with
a_n=\frac{f^{(n)}(a)}{n!}.