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Recent questions tagged q42
Questions
A smooth block is released at rest on $45 ^{\circ}$ incline and then slides a distance 'd'. The time taken to slide is 'x' times as much to slide on rough incline than on smooth incline.The coefficient of friction is
jeemain
physics
class11
unit3
laws-of-motion
q42
medium
asked
Jul 10, 2013
by
meena.p
1
answer
The kinetic energy of rotation k depends on angular momentum J and moment of inertia I.The expression for kinetic energy is ( where c is a constant )
jeemain
physics
class11
ch2
units-and-measurement
q42
easy
dimensional-formulae-and-analysis
asked
Jun 18, 2013
by
meena.p
1
answer
Which of the following curves is concave down ?
tnstate
class12
bookproblem
p233
objective
q42
modelpaper
mar-2008
jun-2009
asked
May 20, 2013
by
poojasapani_1
1
answer
$\overrightarrow{r}=s\overrightarrow{i}+t\overrightarrow{j}$ is the equation of
tnstate
class12
bookproblem
p268
objective
q42
modelpaper
jun-2008
asked
May 10, 2013
by
poojasapani_1
1
answer
Differentiate each of the following w.r.t $x$: $tan^{-1}\large\frac{3a^2x-x^3}{a^3-3ax^2}$, $\frac{1}{\sqrt 3}< \frac{x}{a} <\frac{-1}{\sqrt 3}$
cbse
class12
ch5
q42
p110
short-answer
exemplar
sec-a
difficult
math
asked
Feb 19, 2013
by
sreemathi.v
1
answer
If E and F are events such that $P(F)=1/4P(F)=1/2\;and\;P(E\cap P)=1/8\;find\;P(\bar{E}\cap\bar{F})$
cbse
class12
additionalproblem
kvquestionbank2012
ch13
q42
p43
math
asked
Feb 5, 2013
by
meena.p
0
answers
Evaluate: \[\int \frac{1}{1+\sqrt x}dx\]
cbse
class12
additionalproblem
kvquestionbank2012
ch7
q42
p27
math
asked
Feb 3, 2013
by
meena.p
0
answers
Find the absolute maximum and absolute minimum value of $ f(x)=2 \cos x+x \qquad x\in[0,\pi]$
cbse
class12
additionalproblem
kvquestionbank2012
ch6
q42
p19
math
asked
Jan 29, 2013
by
meena.p
0
answers
If $ x=\cos \theta + log \tan \Large\frac{\theta }{2},\normalsize y=\sin \theta \;find\; \Large\frac {d^2y}{dx^2}\normalsize \;at\;\theta =\Large\frac{\pi}{4}$
cbse
class12
additionalproblem
kvquestionbank2012
ch5
q42
p14
medium
math
sec-a
asked
Jan 28, 2013
by
meena.p
1
answer
If a, b, c are in A.P. then find the value of: $\begin{vmatrix} 2y+4 & 5y+7 & 8y+a \\ 3y+5 & 6y+8 & 9y+b \\ 4y+6 & 7y+9 & 10y+c \end{vmatrix}$
cbse
class12
additionalproblem
kvquestionbank2012
ch3
q42
p10
math
sec-b
asked
Jan 24, 2013
by
meena.p
0
answers
Family $y=Ax+A^3$ of curves is represented by the differential equation of degree\[(A)\;1\quad(B)\;2\quad(C)\;3\quad(D)\;4\]
cbse
class12
ch9
sec-a
q42
p196
objective
exemplar
easy
math
asked
Jan 18, 2013
by
sreemathi.v
1
answer
True-or-False: Position vector of a point P is a vector whose initial point is origin.
cbse
class12
ch10
q42
p219
exemplar
easy
sec-a
math
asked
Jan 17, 2013
by
sreemathi.v
1
answer
Evaluate the following:$\int e^{-3x}\cos^3xdx$
cbse
class12
ch7
q42
p166
exemplar
sec-c
difficult
math
asked
Jan 14, 2013
by
sreemathi.v
1
answer
The points at which the tangents to be curve $y=x^3-12x+18$ are parallel to x-axis are:
cbse
class12
ch6
q42
p139
objective
exemplar
easy
sec-a
math
asked
Jan 11, 2013
by
sreemathi.v
1
answer
Three bags contain a number of red and white balls as follows:
cbse
class12
ch13
q42
p276
exemplar
sec-b
medium
math
asked
Jan 9, 2013
by
sreemathi.v
1
answer
True or False: If the feasible region for a LPP is unbounded,maximum or minimum of the objective function $Z=ax+by$ may or may not exist
cbse
class12
ch12
q42
p257
true-or-false
exemplar
sec-a
easy
math
asked
Jan 8, 2013
by
sreemathi.v
1
answer
True or False: The unit vector normal to the plane $x+2y+3z-6=0$ is $\large \frac{1}{\sqrt {14}}\hat i+\frac{2}{\sqrt {14}}\hat j+\frac{3}{\sqrt {14}}\hat k.$
cbse
class12
ch11
q42
p239
true-or-false
exemplar
easy
sec-a
math
asked
Jan 6, 2013
by
sreemathi.v
1
answer
If A is a matrix of order $3\times 3$,then $(A^2)^{-1}$=_____________.
cbse
class12
ch4
sec-a
q42
p83
fitb
exemplar
easy
math
asked
Dec 28, 2012
by
sreemathi.v
1
answer
Find the matrix A such that$\begin{bmatrix}2 & -1\\1 & 0\\-3 & 4\end{bmatrix}\;A=\begin{bmatrix}-1 & -8 & -10\\1& -2 & -5\\9 & 22 &15\end{bmatrix}.$
cbse
class12
ch3
q42
p58
short-answer
exemplar
sec-b
easy
math
asked
Dec 23, 2012
by
sreemathi.v
1
answer
The principal value of $ \tan^{-1}\sqrt 3 $ is _______________.
cbse
class12
ch2
q42
p40
fitb
exemplar
easy
sec-a
math
asked
Dec 21, 2012
by
sreemathi.v
1
answer
Let $f:R-\{\frac{3}{5}\}\rightarrow R$ be defined by $f(x)=\Large {\frac{3x+2}{5x-3}}$ .Then
cbse
class12
ch1
q42
p15
objective
exemplar
math
sec-a
asked
Dec 19, 2012
by
sreemathi.v
1
answer
Choose the correct answers in $\int\frac{\large \cos 2x}{\large (\sin x+\cos x)^2}dx$ is equal to
cbse
class12
bookproblem
ch7
misc
q42
p353
sec-a
easy
math
asked
Dec 2, 2012
by
sreemathi.v
1
answer
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