Email
Chat with tutors
Login
Ask Questions, Get Answers
Menu
X
home
ask
tuition
questions
practice
papers
mobile
tutors
pricing
X
Questions asked by rvidyagovindarajan_1
Questions
870
questions
0
answers selected
If $A=\{1,2,3\}$ and $B=\{2,3,4,9\}$, then which of the following is a function $f:A \;\rightarrow \;B$ ?
jeemain
math
class11
ch2
relations-and-functions
functions
easy
asked
May 21, 2013
1
answer
$A\cap (A\cap B)'$ = ?
jeemain
math
class11
ch1
sets
operation on sets
easy
asked
May 21, 2013
1
answer
If $A=\{x:x\in R\:\:and\:\:x\geq 4\}$ and $B=\{x:x\in R\:and\:x< 5\}$, then $A\cap B$ = ?
jeemain
math
class11
ch1
sets
operation on sets
easy
asked
May 21, 2013
1
answer
If $A=\{1,3,5,B\}$ and $B=\{2,4\}$, then which of the following is true ?
jeemain
cbse
math
class11
ch1
sets
subsets powersets and universal sets
easy
asked
May 21, 2013
1
answer
$A\cap (A\cup B)$ = ?
jeemain
math
class11
ch1
sets
operation-on-functions
functions
easy
asked
May 21, 2013
1
answer
If $f(x)=\large\frac{4^x}{4^x+2}$ then which among the following is correct ?
jeemain
math
class11
ch2
relations-and-functions
functions
easy
asked
May 21, 2013
1
answer
If $log_2(log_3(log_4(log_5x)))=0$ then x= ?
jeemain
math
class12
ch1
relations-and-functions
composition
of
functions
easy
asked
May 18, 2013
1
answer
Which of the given functions is an odd function ?
jeemain
math
class11
ch2
relations-and-functions
functions
easy
asked
May 18, 2013
1
answer
If $S_1=\{1,2,...................20\}$, $S_2=\{a,b,c,d,e\}$, $S_3=\{a,c,e,f\}$, then no. of elements of $(S_1\times S_2)\cap (S_1\times S_3)$ is ?
jeemain
math
class11
ch1
sets
powersets
subsets
and
universal
easy
asked
May 18, 2013
1
answer
If $f(x)=\cos \log x$ then $f(x).f(y)-\large\frac{1}{2}$$\bigg(f(\large\frac{x}{y}$)$+f(xy)\bigg)= ?$
jeemain
math
class12
ch1
relations-and-functions
composition
of
functions
medium
asked
May 18, 2013
1
answer
The set that cannot be represented by roster form is:
jeemain
math
class11
ch1
sets
types
of
easy
asked
May 17, 2013
1
answer
How is Null set represented in set builder form ?
jeemain
math
class11
ch1
sets
types
of
easy
asked
May 17, 2013
1
answer
If $A\cap B=B$ then what can you say about $A$ and $B $?
jeemain
math
class11
ch1
sets
operation
on
easy
asked
May 17, 2013
1
answer
If $A\cup B=A,\:\:$ then what can you say about $A$ and $B$?
jeemain
math
class11
ch1
sets
operation
on
easy
asked
May 17, 2013
1
answer
Range of $f(x)=\large\frac{|x|}{x}$ is ?
jeemain
math
class11
ch2
relations-and-functions
function
easy
asked
May 17, 2013
1
answer
Domain of $y=log(1+x)$ is ?
jeemain
math
class11
ch2
relations-and-functions
easy
asked
May 17, 2013
1
answer
If $A,B\:and\: C$ are three finite sets, then $[(A\cup B)\cap C]' $ = ?
jeemain
math
class11
ch1
sets
sec-a
easy
asked
May 15, 2013
1
answer
How many proper subsets are there for a set having 5 elements ?
jeemain
math
class11
ch1
sets
sec-a
easy
asked
May 15, 2013
1
answer
If $V=\{x:\:x+2=0\}$, $\:R=\{x:\:x^2+2x=0\}$ and $\:\:S=\{x:\:x^2+x-2=0\}$, then for what value of $x$, $V=R=S$ ?
jeemain
math
class11
ch1
sets
sec-a
easy
asked
May 15, 2013
1
answer
If $f=\{(1,5),(2,6),(3,4)\}$ and $g=\{(4,7),(5,8),(6,9)\}$, then $gof$ = ?
jeemain
math
class11
ch2
relations-and-functions
easy
asked
May 15, 2013
1
answer
If $f:R\rightarrow R$ is defined $f(x)=x^2-3$ then $f^{-1}x$ = ?
jeemain
math
class12
ch1
sets-relations-and-functions
sec-a
easy
asked
May 13, 2013
1
answer
$f:N\rightarrow Z$ is a function defined as $f(n)=\left\{ \begin {array} {1 1} \large\frac{n-1}{2}, \:\:when\:\: n\:\: is\:\: odd \\ -\large \frac{n}{2},\:\:when\:\: n\:\: is\:\: even \\ \end{array} \right.$, then $f$ is
jeemain
math
class12
ch1
relations-and-functions
easy
asked
May 13, 2013
1
answer
Find the equations of the planes that passes through three points, $(b)\; (1, 1, 0), (1, 2, 1), (-2, 2, -1) $
cbse
class12
ch11
sec3
q6
q6-b
p493
sec-b
medium
bookproblem
math
asked
May 13, 2013
1
answer
If $M$ is the set of all $2\times 2$ matrices with real entries and $f :M\rightarrow R$ is defined as $ f(A)=|A| \:\forall\:A\in M$, then $f$ is
jeemain
math
class12
ch1
sets-relations-and-functions
medium
asked
May 12, 2013
1
answer
If $g(x)=1+x-[x]$ where $[x]$ is greatest integer $x$ and $f(x)=\left\{\begin{array}{111}-1,\:\:\:\:x<0\\0,\:\:\:\:\:x=0\\1,\:\:\:\:\:x>0\end{array}\right.$ then $fog(x)=?$
jeemain
math
class12
ch1
relations-and-functions
difficult
asked
May 12, 2013
1
answer
If $f(x)=x^2\:\:and\:\:g(x)=2^x$ and $fog(x)=gof(x)$ then $x$ = ?
jeemain
math
class12
ch1
relations-and-functions
composition-of-functions
easy
asked
May 12, 2013
1
answer
If $f(x)=\large\frac{1}{1-x}$ is a function defined in $R-\{1\}$ then $\;fofof(x)$ = ?
jeemain
math
class12
ch1
relations-and-functions
composition-of-functions
medium
asked
May 12, 2013
1
answer
If $*$ is a binary operation defined as $a*b=3a-b$, then $(2*3)*4=$ ?
jeemain
math
class12
ch1
relations-and-functions
binary-operation
easy
asked
May 12, 2013
1
answer
If * is a binary operation defined in $Q^+$ as $a*b=\large\frac{ab}{3}$, then the inverse element of 4*6 is ?
jeemain
math
class12
ch1
sets-relations-and-functions
medium
asked
May 12, 2013
1
answer
If * is a binary operation defined by a*b=$\frac{ab}{100}$ in $Q^+$ then the inverse element of 0.1 is:
jeemain
math
class12
ch1
relations-and-functions
binary-operations
easy
asked
May 12, 2013
1
answer
Find the vector and cartesian equations of the planes $(b) \quad \text{that passes through the point} \; (1, 4, 6) \; \text{and the normal to the plane is } \hat i-2\hat j + \hat k $
cbse
class12
bookproblem
ch11
sec3
q5
q5-b
p493
easy
sec-a
math
asked
May 10, 2013
1
answer
Find the coordinates of the foot of the perpendicular drawn from the origin to the plane $(d)\;5y + 8 = 0 $
cbse
class12
bookproblem
ch11
sec3
p493
q4
q4-d
sec-a
easy
math
asked
May 9, 2013
1
answer
Find the coordinates of the foot of the perpendicular drawn from the origin to the plane $(c)\; x + y + z = 1 $
cbse
class12
bookproblem
ch11
sec3
q4
q4-c
p493
sec-a
easy
math
asked
May 9, 2013
1
answer
Find the coordinates of the foot of the perpendicular drawn from the origin to the plane $(b)\; 3y + 4z – 6 = 0 $
cbse
class12
bookproblem
ch11
q4
q4-b
p493
easy
sec-a
math
asked
May 9, 2013
1
answer
If $[2x-3]=5$, what are the values of $x$ where $[.]$ is greatest integer function
jeemain
math
class11
ch2
relations-and-functions
function
medium
asked
May 8, 2013
1
answer
If $f(x)=log\bigg(\large\frac{1+x}{1-x}\bigg)$, then $f(x)+f(y)$ = ?
jeemain
math
class11
ch2
relations-and-functions
function
difficult
asked
May 8, 2013
1
answer
Find the Cartesian equation of the following planes: (c) $ r .[(s - 2t)\hat i + (3- t) \hat j +(2 s + t) \hat k] = 15$
cbse
class12
bookproblem
p493
ch11
sec3
q3
q3-c
easy
sec-a
math
asked
May 8, 2013
1
answer
Find the Cartesian equation of the plane $(b)\; \overrightarrow r . (2\hat i +3\hat j - 4\hat k) = 1 $
cbse
class12
bookproblem
ch11
sec3
p493
q3
q3-b
easy
sec-a
math
asked
May 8, 2013
1
answer
If $f(x)=x^2$ $g(x)=sinx$, $\forall x\in R$, then the set of all $x$ satisfying $fogogof(x)=gogof(x)$ is
jeemain
math
class12
ch1
relations-and-functions
composition-of-functions
medium
asked
May 7, 2013
1
answer
If $f(x)$ is a real valued function satisfying $f(x+1)+f(x-1)=2f(x)$ $\forall x\in R$ and $f(0)=0$, then for any $n\in N,\:f(n)$ = ?
jeemain
math
class12
ch1
relations-and-functions
composition
of
functions
difficult
asked
May 7, 2013
1
answer
If $f:R\rightarrow R$ is a function defined as $f(2x+3)+f(2x+7)=2$ $\forall x\in R$ then the period of $f(x)$ is
jeemain
math
class11
ch2
relations-and-functions
functions
difficult
asked
May 7, 2013
1
answer
The range of the real valued function $f(x)=\large\frac{x^2+x+2}{x^2+x+1}$ is
jeemain
math
class11
ch2
relations-and-functions
functions
difficult
asked
May 7, 2013
1
answer
The domain of $y=sin^{-1}(1+3x+2x^2)$ is
jeemain
math
class12
ch1
relations-and-functions
composition
of
functions
medium
asked
May 7, 2013
1
answer
In each of the following cases determine the direction cosines of the normal to the plane and the distance from origin(d) $5y+8=0$
cbse
bookproblem
class12
ch11
sec3
q1
q1-d
p493
easy
sec-a
math
asked
May 6, 2013
1
answer
In each of the following cases determine the direction cosines of the normal to the plane and the distance from origin(c) $2x+3y-z=5$
cbse
bookproblem
class12
ch11
sec3
p493
q1
q1-c
easy
sec-a
math
asked
May 6, 2013
1
answer
In each of the following cases,determine the direction cosines of the normal to the plane and also the distance from origin(b) $x+y+z=1$
class12
bookproblem
ch11
sec3
q1
q1-b
p493
easy
sec-a
cbse
math
asked
May 6, 2013
1
answer
If $A\:and\:B$ are two sets such that $(A-B)\cup B=A$, then what can you say about $A\:and\:B$?
jeemain
math
class11
ch1
sets
venn
diagram
and
operations
on
easy
asked
May 4, 2013
1
answer
If $f:R\rightarrow S$ defined by $\:f(x)=\sin x-\sqrt3\; \cos x+1\;$ is onto function then $S$ = ?
jeemain
math
class12
ch1
relations-and-functions
types
of
functions
difficult
asked
May 4, 2013
1
answer
If $f$ is a real values function satisfying $f(x+y)=f(x)\;f(y)$ and $f(1)=a$ where $x,y\in R$, then $f(x)$ =
jeemain
math
class12
ch1
relations-and-functions
composition of functions
difficult
asked
May 4, 2013
1
answer
The value of $\alpha$ for which the function $f(x)=1+\alpha x,\:\:\alpha\neq 0$ is the inverse of itself is:
jeemain
math
class12
ch1
relations-and-functions
composition
of
functions
medium
asked
May 4, 2013
1
answer
Page:
« prev
1
...
14
15
16
17
18
next »
Home
Ask
Tuition
Questions
Practice
Your payment for
is successful.
Continue
...