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Recent questions tagged q4-1
Questions
By giving counter example show that the statement "If all the angles of a triangle are equal then the triangle is an obtuse angled triangle" is not true.
cbse
class11
ch14
mathematical-reasoning
bookproblem
exercise14-5
sec-b
easy
q4-1
asked
Jul 29, 2014
by
rvidyagovindarajan_1
1
answer
For the statement "If you live in Delhi then you have winter clothes.' is the statement "If you do not have winter clothes then you do not live in Delhi" contra positive or converse?
cbse
class11
ch14
mathematical-reasoning
bookproblem
exercise14-4
sec-a
easy
q4-1
asked
Jul 22, 2014
by
rvidyagovindarajan_1
1
answer
State whether 'or' used in the statement given "Sun rises or Moon sets" is exclusive or inclusive.
cbse
class11
ch14
mathematical-reasoning
bookproblem
exercise14-3
sec-a
easy
q4-1
asked
Jul 16, 2014
by
rvidyagovindarajan_1
1
answer
Differentiate the following function: $ \tan ^{-1}( \sqrt{1+x^2}+x)$
cbse
class12
ch5
additionalproblem
q4
q4-1
asked
May 1, 2014
by
meena.p
0
answers
The $x-$ axis and $y-$ axis taken together determine a plane known as ?
cbse
class11
ch12
introduction-to-3d-geometry
bookproblem
exercise12-1
sec-a
easy
q4-1
asked
Apr 16, 2014
by
rvidyagovindarajan_1
1
answer
Find the probability distribution of number of heads in two tosses of a coin.
cbse
class12
bookproblem
ch13
sec4
p570
q4
q4-1
easy
sec-a
math
asked
Jun 19, 2013
by
balaji.thirumalai
1
answer
Solve : $x^4+4=0$
tnstate
class12
bookproblem
ch3
exercise3-5
q4
q4-1
p166
jun-2006
oct-2008
oct-2009
modelpaper
asked
Jun 12, 2013
by
sreemathi.v
1
answer
Prove that the following functions are not monotonic in the intervals given. $2x^{2}+x-5$ on $[-1 ,0 ]$
tnstate
class12
bookproblem
ch5
sec-1
exercise5-7
p41
q4
q4-1
asked
May 4, 2013
by
poojasapani_1
2
answers
At what points on the curve $x^{2}+y^{2}-2x-4y+1=0$ the tangent is parallel to $x$- axis.
tnstate
class12
bookproblem
ch5
sec-1
exercise5-2
p18
q4
q4-1
asked
May 3, 2013
by
poojasapani_1
1
answer
Evaluate: $\int\limits_{0}^{1} x e^{-2x} dx$
tnstate
class12
bookproblem
ch7
sec-1
exercise7-1
p103
q4
q4-1
asked
Apr 27, 2013
by
poojasapani_1
1
answer
Find $\large\frac{\partial w}{\partial r}$ and $\large\frac{\partial w}{\partial \theta}$ if $\;w=\log(x^{2}+y^{2})$where $\;x=r\cos\theta,y=r\sin\theta$
tnstate
class12
bookproblem
ch6
sec-1
exercise6-3
p74
q4
q4-1
asked
Apr 26, 2013
by
poojasapani_1
1
answer
The edge of a cube was found to be $30cm$ with a possible error in mesurement of $ 0.1cm$. Use differentials to estimate the maximum possible error in computing the volume of the cube .
tnstate
class12
bookproblem
ch6
sec-1
exercise6-1
p79
q4
q4-1
asked
Apr 24, 2013
by
poojasapani_1
1
answer
Alpha particles are emitted by a radio active source at an average rate of $5$ in a $20$ minutes interval.Using poisson distribution find the probability that there will be $2$ emission.$[e^{-5}=0.0067].$
tnstate
bookproblem
ch10
sec-1
exercise10-4
p219
q4
q4-1
asked
Apr 21, 2013
by
poojasapani_1
1
answer
Four coins are tossed simultaneously .what is the probability of getting exactly $2$ heads
tnstate
class12
bookproblem
ch10
sec-1
exercise10-3
p215
q4
q4-1
modelpaper
mar-2008
asked
Apr 21, 2013
by
poojasapani_1
1
answer
A discrete random variable $x$ has the following probability distribution. Find the value of $a$ \[\] $\begin{array} {llllllll} X:& 0& 1& 2& 3& 4& 5& 6& 7& 8 &\\ {P(X):}& a& 3a &5a& 7a& 9a &11a &13a &15a&17a \end{array}$
tnstate
class12
bookproblem
c10
sec-1
exercise10-1
p203
q4
q4-1
modelpaper
mar-2007
asked
Apr 18, 2013
by
poojasapani_1
0
answers
Prove that $\left ( 1+\mathit{i} \right )^{\mathit{n}} + \left ( 1-\mathit{i} \right )^{\mathit{n}} = 2^{\large\frac{n+2}{2}} \cos \; \large\frac{n\pi}{4}$
tnstate
class12
bookproblem
ch3
exercise3-4
q4
q4-1
p157
oct-2007
may-2008
may-2010
modelpaper
asked
Apr 16, 2013
by
geethradh
1
answer
Find the equation of the two tangents that can be drawn,from the point $(2 , -3 )$ to the parabola $y^{2}=4x $
tnstate
class12
bookproblem
ch4
sec-1
exercise4-4
p249
q4
q4-1
asked
Apr 13, 2013
by
poojasapani_1
1
answer
Find the equations and length of major and minor axes of $9x^{2}+25y^{2}=225$
tnstate
class12
bookproblem
ch4
sec-1
exercise4-2
p217
q4
q4-1
asked
Apr 10, 2013
by
poojasapani_1
1
answer
Find the value of $m$ for which the vectors $\overrightarrow{a}=\overrightarrow{3i}+\overrightarrow{2j}+\overrightarrow{9k}$ and $\overrightarrow{b}=\overrightarrow{i}+\overrightarrow{mj}+\overrightarrow{3k}$ are perpendicular
tnstate
class12
bookproblem
ch2
sec-1
exercise2-1
p56
q4
q4-1
asked
Apr 3, 2013
by
poojasapani_1
1
answer
Find the real values of $\mathit{x}$ and $\mathit{y}$ for which the following equation: $\left ( 1-\mathit{i} \right )\mathit{x} + \left ( 1+\mathit{i} \right )\mathit{y} = 1-3\mathit{i}$
tnstate
class12
bookproblem
ch3
sec3
exercise3-1
q4
q4-1
p130
asked
Apr 1, 2013
by
geethradh
1
answer
Find the inverse of following matrix :$\begin{bmatrix} 1 & 0 & 3 \\2 & 1 & -1 \\1 & -1 & 1 \end{bmatrix}$
tnstate
class12
bookproblem
ch1
sec-1
exercise1-1
p9
q4
q4-1
mar-2007
modelpaper
sec-b
difficult
asked
Mar 28, 2013
by
poojasapani_1
1
answer
Consider a binary operation $\ast$ on the set \(\{1, 2, 3, 4, 5\}\) given by the following multiplication table (Table 1.2). \begin{matrix} *&1&2&3&4&5 \\ 1&1&1&1&1&1 \\ 2&1&2&1&2&1 \\ 3&1&1&3&1&1 \\ 4&1&2&1&4&1 \\ 5&1&1&1&1&5 \end{matrix} (i) Compute $(2*3)*4$ and $2*(3*4)$
cbse
class12
bookproblem
ch1
sec4
q4
easy
q4-1
p25
sec-a
math
asked
Mar 20, 2013
by
balaji.thirumalai
1
answer
Construct a $2 \times 2$ matrix, $A=[a_{ij}],$whose elements are given by: $a_{ij}=\frac{(i+j)^2}{2}\qquad$
class12
cbse
bookproblem
ch3
sec1
p64
easy
q4-1
veryshort-answer
sec-a
math
asked
Feb 27, 2013
by
balaji.thirumalai
1
answer
Find the transpose of each of the following matrices : \( (i)\begin{bmatrix} 5 \\ \frac{1}{2} \\ -2 \end{bmatrix} \).
cbse
class12
modelpaper
2012
sec-a
q4
q4-1
ch3
easy
math
asked
Jan 6, 2013
by
thanvigandhi_1
1
answer
In the matrix $A=\begin{bmatrix} 2 & 5 & 19 & -7 \\ 35 & -2 & \frac{5}{2} & 12 \\ \sqrt 3 & 1 & -5 & 17 \end{bmatrix} $Write (i) The order of the matrix .
cbse
class12
modelpaper
2012
sec-a
q4
q4-1
ch3
easy
math
asked
Jan 2, 2013
by
thanvigandhi_1
1
answer
A discrete random variable X has the following probability distributions (see table below). (i) Find the value of a
tnstate
class12
bookproblem
ch10
sec2
exercise10-1
p203
q4
q4-1
modelpaper
mar-2007
asked
Nov 27, 2012
by
balaji.thirumalai
1
answer
Prove that the following functions do not have maxima or minima: $ (i)\: f (x) = e^x $
cbse
class12
bookproblem
ch6
sec5
q4
q4-1
p232
sec-a
easy
math
asked
Nov 26, 2012
by
thanvigandhi_1
1
answer
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