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Recent questions tagged jeemain
Questions
If $ S $ is a set having 10 elements in it and $A$ is a relation in $S$ defined as $A=\{(x,y)$, where $ x,y \in\:S\;$ and $\;x\neq\;y.\}$, then no. of elements in $A$ is
jeemain
math
class11
ch2
relations-and-functions
relations
easy
asked
Apr 29, 2013
by
rvidyagovindarajan_1
1
answer
The range of $f (x)=\large\frac{1+x^2}{x^2}$ is
jeemain
math
class11
ch2
relations-and-functions
functions
easy
asked
Apr 28, 2013
by
rvidyagovindarajan_1
1
answer
If $A=\{1,2,3,4\}$ and $B=\{1,2\}$, then the number of onto functions from $A$ to $B$ is
jeemain
math
class12
ch1
relations-and-functions
functions
medium
asked
Apr 28, 2013
by
rvidyagovindarajan_1
1
answer
If the set $S={1,2,3...........12}$ is to be partitioned into $3$ sets $A,B,C$ of equal size so that $A\cup B\cup C=S$ and $A\cap B=B\cap C=C\cap A=\phi$, then the no. of ways the partition can be done is
jeemain
math
class11
ch1
sets
venn
diagram
operation
on
difficult
asked
Apr 26, 2013
by
rvidyagovindarajan_1
1
answer
Solve the equation: $\sin^{-1}(6x) + \sin^{-1}(6\sqrt 3 x) =-\large \frac{\pi}{2}$
jeemain
trigonometry
inverse-trignometric-functions
medium
math
cbse
class12
ch2
sec-a
asked
Apr 22, 2013
by
smanpreet070
1
answer
The rate at which the population of a city increases at any time is propotional to the population at that time. If there were $1,30,000$ people in the city in $1960 $ and $1,60,000$ in $1990$ what population may be anticipated in $2020$.$[\log_{e}(\large\frac{16}{13})=$$.2070;$$e^{.42}=1.52]$
math
tnstate
class12
bookproblem
ch8
sec-1
exercise8-6
p155
q4
medium
jeemain
differential-equations
asked
Apr 17, 2013
by
poojasapani_1
1
answer
A cup of coffee at temperature $100^{\circ}$$C$ is placed in a room whose temperature is $15^ {\circ}$$C$ and it cools to $60^{\circ}$$C$ in $5$ minutes . Find its temperature after a further interval of $5$ minutes.
tnstate
class12
math
bookproblem
ch8
sec-1
exercise8-6
p155
q3
jeemain
difficult
modelpaper
oct-2009
asked
Apr 17, 2013
by
poojasapani_1
1
answer
Solve the following $(x+y)^2 \large\frac{dy}{dx}$=$1$
tnstate
class12
math
bookproblem
q8
sec-1
exercise8-2
p133
q7
jeemain
differential-equations
modelpaper
oct-2008
asked
Apr 15, 2013
by
poojasapani_1
1
answer
If A=$\begin{bmatrix}3 & 2\\1 & 1\end{bmatrix}$ find the values of a and b, such that $A^2+aA+bI=0.$
cbse
class12
math
additionalproblem
ch3
sec-a
jeemain
matrices-and-determinants
matrices
easy
asked
Apr 4, 2013
by
sreemathi.v
1
answer
What is the value of the function: $\large \frac{1}{4} $$\sin^{-1}\large\frac{2\sqrt 2}{3}$$+\sin^{-1}\large\frac{1}{3} $
cbse
class12
ch2
additionalproblem
easy
sec-b
math
jeemain
trignometry
inverse-trignometric-functions
asked
Mar 14, 2013
by
balaji.thirumalai
1
answer
Evaluate $\cot^{-1} \left ( \large \frac {{\sqrt {1+\sin x}}+{\sqrt {1-\sin x}}}{{\sqrt {1+\sin x}}-{\sqrt {1-\sin x}}} \right ) = \large \frac {x}{2}$$ , x \in \left ( 0, \frac{\pi}{4} \right )$
class12
cbse
concepts
medium
sec-b
math
jeemain
inverse-trignometric-functions
trigonometry
asked
Mar 14, 2013
by
balaji.thirumalai
1
answer
If $\;A=\small\frac{1}{\pi}$$\begin{bmatrix}sin^{-1}(\pi x) &tan^{-1}\big(\frac{\pi}{x}\big)\\ sin^{-1}\big(\frac{\pi}{x} \big)&cot^{-1}(\pi x)\end{bmatrix}\;$ and $\;B=\small\frac{1}{\pi} $$\begin{bmatrix}-cos^{-1}(\pi x) &tan^{-1}\big(\frac{x}{\pi}\big)\\ sin^{-1}\big(\frac{x}{\pi} \big)&-tan^{-1}(\pi x)\end{bmatrix}$ then $A-B$ is equal to
cbse
class12
ch3
q56
p60
objective
exemplar
easy
sec-a
math
jeemain
matrices-and-determinants
matrices
asked
Mar 10, 2013
by
sreemathi.v
1
answer
The relation $R$ in the set $A=\{x\in Z: 0 \leq x \leq 12\}$, given by $ R = \{(a,b) |a-b|$ is a multiple of 4$\}$. Is the relation reflexive, symmetrical or transitive?
cbse
class12
additionalproblem
ch1
sec1
sec-a
easy
math
jeemain
medium
sets-relations-and-functions
asked
Mar 8, 2013
by
balaji.thirumalai
1
answer
A and B throw a pair of die turn by turn. The first to throw 9 is awarded a prize. If A starts the game, What is the probability of A getting the prize?
cbse
class12
modelpaper
2012
sec-b
q22
difficult
jeemain
probability
math
asked
Feb 11, 2013
by
thanvigandhi_1
1
answer
Evaluate:$\int \limits_{-\pi}^{\pi} x^{20} \sin ^9x dx $
cbse
class12
math
additionalproblem
kvquestionbank2012
ch7
q87
p30
jeemain
integral-calculus
easy
asked
Feb 4, 2013
by
meena.p
1
answer
Evaluate $\int \limits_0^ 1 x(1-x)^n dx$
cbse
class12
additionalproblem
kvquestionbank2012
ch7
q73
p29
jeemain
medium
integral-calculus
math
asked
Feb 4, 2013
by
meena.p
1
answer
Evaluate:$\Large\int \limits_{\normalsize 0}^{\normalsize \pi} $$\large\frac{x\; \tan x}{\sec x\; \text{cosec} x}$
cbse
class12
additionalproblem
kvquestionbank2012
ch7
q72
p29
jeemain
integral-calculus
math
asked
Feb 4, 2013
by
meena.p
1
answer
The curve for which the slope of the tangent at any point is equal to the ratio of the abscissa to the ordinate of the point is
class12
cbse
ch9
sec-a
q62
p199
objective
exemplar
easy
jeemain
differential-equations
math
asked
Jan 19, 2013
by
sreemathi.v
1
answer
Form the differential equation of all circles which pass through origin and whose centers lie on y-axis as shown below:
cbse
class12
ch9
sec-b
q14
p194
short-answer
exemplar
math
difficult
jeemain
differential-equations
asked
Jan 18, 2013
by
sreemathi.v
1
answer
If $y=y(x)$ satisfies $x\cos y + y\cos x = \pi$, then find $y''(0)$:
cbse
class12
ch5
math
differential-equations
additionalproblem
jeemain
difficult
sec-b
asked
Jan 3, 2013
by
sreemathi.v
1
answer
If $x=t^2$,$y=t^3,then\;\large \frac{d^2y}{dx^2}$ is
cbse
class12
math
ch3
q94
p115
objective
exemplar
sec-a
easy
jeemain
asked
Jan 3, 2013
by
sreemathi.v
1
answer
If $y=\tan^{-1}x$, find $\large {\frac{d^2y}{dx^2}}$ in terms of y alone.
cbse
class12
ch5
q64
p111
short-answer
exemplar
sec-b
difficult
math
jeemain
limits-continuity-and-differentiability
differentiability
asked
Jan 2, 2013
by
sreemathi.v
1
answer
There are three coins. One is a two headed coin (having head on both faces), another is a biased coin that comes up heads 75% of the time and third is an unbiased coin. One of the three coins is chosen at random and tossed, it shows heads, what is the probability that it was the two headed coin ?
cbse
class12
bookproblem
ch13
sec3
q6
p556
sec-b
easy
modelpaper
2012
q24
math
jeemain
probability
asked
Dec 18, 2012
by
thanvigandhi_1
1
answer
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