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Recent questions tagged q45
Questions
Two dice are thrown. Find the probability that the number appeared have a sum 8 if it is known that second dice always exhibits 4.
cbse
class12
additionalproblem
kvquestionbank2012
ch13
q45
p43
math
asked
Feb 5, 2013
by
meena.p
0
answers
Evaluate:\[\int e^{\sin 2x}\sin 2xdx\]
cbse
class12
additionalproblem
kvquestionbank2012
ch7
q45
p27
math
asked
Feb 3, 2013
by
meena.p
0
answers
Find the area of the greatest isoscles triangle that can be inscribed in a given ellipse $ \Large\frac{x^2}{a^2}+\frac{y^2}{b^2}$=1 with its vertex coinciding with one extremity of the major axis.
cbse
class12
additionalproblem
kvquestionbank2012
ch6
q45
p19
math
asked
Jan 29, 2013
by
meena.p
0
answers
If $ x\sqrt{1+y}+y\sqrt{1+x}=0,\normalsize\; Prove\; that\; \Large\frac{dy}{dx}=\frac{-1}{(1+x)^2}$
cbse
class12
additionalproblem
kvquestionbank2012
ch5
q45
p14
difficult
math
sec-b
asked
Jan 28, 2013
by
meena.p
1
answer
Find x, if $ \begin{bmatrix} x & -5 & -1 \end{bmatrix} \begin{bmatrix} 1 & 0 & 2 \\ 0 & 2 & 1 \\ 2 & 0 & 3 \end{bmatrix} \begin{bmatrix} x \\ 4 \\ 1 \end{bmatrix} =0$
cbse
class12
additionalproblem
kvquestionbank2012
ch3
q45
p10
math
sec-a
asked
Jan 24, 2013
by
meena.p
0
answers
The number of solutions of$\Large\frac{dy}{dx}=\Large\frac{y+1}{x-1}$ when y(1)=2 is\[(A)\;none\quad(B)\;one\quad(C)\;two\quad(D)\;infinite\]
cbse
class12
ch9
q45
p197
objective
exemplar
sec-a
math
asked
Jan 18, 2013
by
sreemathi.v
1
answer
True-or-false: If $\overrightarrow{a}$ and $\overrightarrow{b}$ are adjacent sides of a rhombus,then $\overrightarrow{a}.\overrightarrow{b}=0$
cbse
class12
ch10
q45
p219
exemplar
easy
sec-a
math
asked
Jan 17, 2013
by
sreemathi.v
1
answer
Evaluate the following: $\int\limits_0^1 x\;log(1+2x)dx$
cbse
class12
ch7
q45
p166
exemplar
sec-b
medium
math
asked
Jan 14, 2013
by
sreemathi.v
1
answer
There are two bags,one of which contains 3 black and 4 white balls while the other contains 4 black and 3 white balls.A die is thrown.If it shows up 1 or 3,a ball is taken from the 1st bag,but it shows up any other number,a ball is chosen from the second bag.Find the probability of choosing a black ball.
cbse
class12
ch13
q45
p277
exemplar
math
sec-b
asked
Jan 9, 2013
by
sreemathi.v
1
answer
True or False: In a LPP,the maximum value of the objective function $Z=ax+by$ is always finite.
cbse
class12
ch12
q45
p257
true-or-false
exemplar
sec-a
easy
math
asked
Jan 8, 2013
by
sreemathi.v
1
answer
True or False: The angle between the planes $\overrightarrow{r}.(2\hat i-3\hat j+\hat k)=1$ and $\overrightarrow{r}.(\hat i- j)=4$ is $\cos^{-1}\Large \frac{-5}{\sqrt {58}}.$
cbse
class12
ch11
q45
p239
true-or-false
exemplar
sec-a
math
asked
Jan 7, 2013
by
sreemathi.v
1
answer
Find $\large \frac{dy}{dx}$ of the function expressed in parametric form $x=e^\theta\bigg(\theta+\frac{1}{\theta}\bigg),y=e^{-\theta}\bigg(\theta-\frac{1}{\theta}\bigg)$
cbse
class12
ch5
q45
p110
short-answer
exemplar
sec-a
easy
math
asked
Dec 31, 2012
by
sreemathi.v
1
answer
if $x=-9$ is a root of $\begin{vmatrix}x & 3 & 7\\2 & x & 2\\7 & 6 & x\end{vmatrix}=0$, then other roots are
cbse
class12
ch4
sec-a
q45
p83
fitb
exemplar
difficult
math
asked
Dec 28, 2012
by
sreemathi.v
1
answer
If the matrix $\begin{bmatrix}0 & a & 3\\2 & b & -1\\c & 1 & 0\end{bmatrix}\;$is a skew symmetric matrix,find the values of a,b and c.
cbse
class12
ch3
q45
p58
short-answer
exemplar
sec-b
medium
qod
math
asked
Dec 23, 2012
by
sreemathi.v
1
answer
The value of expression $\tan\bigg(\Large \frac{\sin^{-1}x+\cos^{-1}x}{2} \normalsize\bigg),when\;x=\frac{\sqrt 3}{2}$ is _______________.
cbse
class12
ch2
q45
p40
fitb
exemplar
easy
sec-a
math
asked
Dec 21, 2012
by
sreemathi.v
1
answer
Let $ f:N\rightarrow R$ be the function defined by $f(x)=\frac{2x-1}{2}\;and\;g:\;Q \rightarrow R $ be another function defined by g(x)=x+2. Then $(g\;o\;f)\frac{3}{2}$ is
cbse
class12
ch1
q45
p16
objective
exemplar
math
sec-a
asked
Dec 19, 2012
by
sreemathi.v
1
answer
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