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Recent questions tagged q1-7

The product of $(-1)$ and $8$ is $8$. Is this sentance a statement? Give reason.

asked Jul 4, 2014 by rvidyagovindarajan_1

1 answer

Using differentials, find the approximate value of each of the following up to 3 places of decimal. $(vii)\;(26)^{\Large\frac{1}{3}}$

asked Aug 5, 2013 by sreemathi.v

1 answer

Evaluate the limit for the following if exists. $\;\lim\limits_{x \to \infty} \large\frac{\log _{e}x}{x}$

asked May 6, 2013 by poojasapani_1

1 answer

If the matrix $A=\begin{pmatrix}2 & 3\\5 & -2\end{pmatrix}$,show that $A^{-1}=\large\frac{1}{19}\normalsize A.$

asked Apr 18, 2013 by sreemathi.v

0 answers

Tickets numbered from 1 to 20 are mixed up together and then a ticket is drawn at random.What is the probability that the ticket has a number which is a multiple of 3 or 7.

asked Apr 17, 2013 by sreemathi.v

1 answer

The probability of A,B and C solving a problem are $\large\frac{1}{3},\frac{2}{7}$ and $\large\frac{3}{8}$respectively.If all the three try and solve the problem simultaneously,find the probability that only one of them will solve it.

asked Apr 16, 2013 by sreemathi.v

0 answers

Kamal and Monika appear for an interview for two vacancies.The probability of Kamal's selection is $\large\frac{1}{3}$ and that of Monika's selection is $\large\frac{1}{5}$.Find the probability that only one of them will be selected.

asked Apr 16, 2013 by sreemathi.v

0 answers

In a single throw of two dice,find the probability of getting a total of at most 9.

asked Apr 15, 2013 by sreemathi.v

1 answer

Find the order and degree of the following differential equation: $y'+ (y'')^{2}=(x+y'')^{2}$

asked Apr 14, 2013 by poojasapani_1

1 answer

Two horses are considered for a race.The probability of selection of the first horse is $\large\frac{1}{4}$ and that of the second is $\large\frac{1}{3}$.What is the probability that :

asked Apr 12, 2013 by sreemathi.v

1 answer

A fair die is thrown once.What is the probability that either an even number or a number greater than three will turn up?

asked Apr 11, 2013 by sreemathi.v

1 answer

Find the equation of the hyperbola if foci: $(\pm 3 , 5 ); e=3$

asked Apr 11, 2013 by poojasapani_1

1 answer

Evaluate : $\large \int_0^1\frac{xe^x}{(1+x)^2}\normalsize dx$

asked Apr 11, 2013 by sreemathi.v

0 answers

Find the equation of the ellipse if the centre is$ (3 , -1 ),$ one of the foci is $(6 , -1)$ and passing through the point $(8 , -1)$.

asked Apr 10, 2013 by poojasapani_1

1 answer

Find the locus of the complex number,Z=x+iy given $\bigg/ \Large \frac{x+iy-2i}{x+iy+2}\bigg/ \normalsize =\sqrt 2$.

asked Apr 10, 2013 by sreemathi.v

0 answers

Find the equation of parabola if : Vertex $(3 , -2 ); $ open downward and the length of the latus rectum is $8$.

asked Apr 9, 2013 by poojasapani_1

1 answer

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