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Recent questions tagged q2-1
Questions
Write the converse and contra positive of the statement "A positive integer is prime only if it has no divisors other than 1 and itself."
cbse
class11
ch14
mathematical-reasoning
bookproblem
exercise-misc14
sec-b
easy
q2-1
asked
Aug 14, 2014
by
rvidyagovindarajan_1
1
answer
Write the contrapositive and converse of the statement: "If $x$ is prime then $x$ is odd."
cbse
class11
ch14
mathematical-reasoning
bookproblem
exercise14-4
sec-b
easy
q2-1
asked
Jul 21, 2014
by
rvidyagovindarajan_1
1
answer
Are the pair of statements "The number $x$ is not a rational number." and "The number $x$ is not an irrational number." negation of each other?
cbse
class11
ch14
mathematical-reasoning
bookproblem
exercise14-2
sec-a
easy
q2-1
asked
Jul 14, 2014
by
rvidyagovindarajan_1
1
answer
If $x=a+b$,$y=a\omega+b\omega^2,z=a\omega^2+b\omega$ show that (i) $xyz=a^3+b^3$ where $\omega$ is the complex cube root of unity.
tnstate
class12
bookproblem
ch3
exercise3-5
q2
q2-1
p166
asked
Jun 12, 2013
by
sreemathi.v
1
answer
Find the absolute maximum and absolute minimum values of $f$ on the given interval: $\;f(x)=x^{2}-2x+2 , [0 , 3 ]$
tnstate
class12
bookproblem
ch5
sec-1
exercise5-9
p53
q2
q2-1
asked
May 5, 2013
by
poojasapani_1
1
answer
Find the area of the region bounded by the lines $x-2y-12=0 $ and $y$-axis,$y=2$ and $y=5$
tnstate
class12
bookproblem
ch7
sec-1
exercise7-4
p117
q2
q2-1
asked
Apr 27, 2013
by
poojasapani_1
1
answer
Evaluate: $\int\limits_{0}^{\large\frac{\pi}{2}}\sin^{6}x dx$
tnstate
class12
bookproblem
ch7
sec-1
exercise7-3
p103
q2
q2-1
asked
Apr 27, 2013
by
poojasapani_1
1
answer
If $u=\sqrt{x^{2}+y^{2}},$ Show that $ x\large\frac{\partial u}{\partial x}+y\frac{\partial u}{\partial y}=u$
tnstate
class12
bookproblem
ch6
sec-1
exercise6-3
p86
q2
q2-1
asked
Apr 25, 2013
by
poojasapani_1
1
answer
Find the differential $dy$ and evaluate $dy$ for the given values of $x$ and $dx$\[\] $y$$=1-x^{2},x$$=5,dx$$=\large\frac{1}{2}$
tnstate
class12
bookproblem
ch6
sec-1
exercise6-1
p79
q2
q2-1
asked
Apr 24, 2013
by
poojasapani_1
1
answer
If $Z$ is a standard normal variate. Find the value of $c$ for the following $ P(0< Z < c)=0.25$
tnstate
class12
bookproblem
ch10
sec-1
exercise10-5
p228
q2
q2-1
asked
Apr 22, 2013
by
poojasapani_1
1
answer
If the probability of a defective fuse from a manufactuning unit is $2\%$ in a box of $200$ fuses find the probability that exactly $4$ fuses are defective
tnstate
class12
bookproblem
ch10
sec-1
exercise10-4
p218
q2
q2-1
asked
Apr 21, 2013
by
poojasapani_1
1
answer
Form the differential equuations by eliminating arbitary constants given in brackets against each. $y^{2}=4ax [a]$
tnstate
class12
bookproblem
ch8
sec-1
exercise8-1
p129
q2
q2-1
asked
Apr 14, 2013
by
poojasapani_1
1
answer
Find the equation of the tangent and normal at $(3 , 4 )$ to the rectangular hyperbola $xy=12$
tnstate
class12
bookproblem
ch4
sec-1
exercise4-6
p262
q2
q2-1
asked
Apr 13, 2013
by
poojasapani_1
1
answer
Find the equation of the hyperbola if the asymptotes are $2x+3y-8=0$ and $3x-2y+1=0$ and $ (5 , 3 ) $ is a point on the hyperbola.
tnstate
class12
bookproblem
ch4
sec-1
exercise4-5
p257
q2
q2-1
modelpaper
mar-2008
oct-2008
asked
Apr 13, 2013
by
poojasapani_1
1
answer
Find the equation of the tangent and normal to the parabola $y^{2}=8x $ at $t=\large\frac{1}{2}$
tnstate
class12
bookproblem
ch4
sec-1
exercise4-4
p248
q2
q2-1
asked
Apr 13, 2013
by
poojasapani_1
1
answer
Find the equation and the length of the transverse and conjugate axis of the following hyperbola :$144x^{2}-25y^{2}=3600$
tnstate
class12
bookproblem
ch4
sec-1
exercise4-3
p238
q2
q2-1
asked
Apr 11, 2013
by
poojasapani_1
1
answer
Find the axies, vertex, focus, equation of directrix , latus rectum , length of the latus rectum for the following parabolas and hence sketch their graphs. $y^{2}=-8x$
tnstate
class12
bookproblem
ch4
sec-1
exercise4-1
p192
q2
q2-1
asked
Apr 9, 2013
by
poojasapani_1
1
answer
Can a vector have direction angles $30^{\circ},45^{\circ},60^{\circ}$?
tnstate
class12
bookproblem
ch2
sec-1
exercise2-6
p94
q2
q2-1
asked
Apr 6, 2013
by
poojasapani_1
1
answer
Find the real and imaginary parts of the following complex numbers: $\large\frac{1}{1+i}$
tnstate
class12
bookproblem
ch3
sec3
exercise3-1
p130
q2
q2-1
asked
Apr 1, 2013
by
geethradh
1
answer
For each operation $\ast$ defined below, determine whether $\ast$ is binary, commutative or associative: On $Z$, define $a \ast b = a-b$
class12
cbse
bookproblem
ch1
sec4
p24
q2
q2-1
sec-a
easy
math
asked
Mar 19, 2013
by
balaji.thirumalai
1
answer
Check the injectivity and surjectivity of the following functions: (i) \(f : N\to N\; given\; by\; f(x)\; = x^2 \)
cbse
class12
bookproblem
ch1
sec2
q2
q2-1
p10
easy
sec-a
math
asked
Mar 14, 2013
by
meena.p
1
answer
Compute the following $(i)\;\begin{bmatrix}a & b\\-b & a\end{bmatrix}+\begin{bmatrix}a & b\\b & a\end{bmatrix}$
class12
cbse
bookproblem
ch3
sec2
p80
easy
q2-1
veryshort-answer
sec-a
math
asked
Feb 27, 2013
by
balaji.thirumalai
1
answer
If a matrix has 24 elements,what are the possible orders it can have? (Note: This question has been split into 2 questions)
class12
cbse
bookproblem
ch3
sec1
p64
easy
q2-1
veryshortanswer
sec-a
math
asked
Feb 27, 2013
by
balaji.thirumalai
1
answer
If a matrix has 12 elements, what are the possible order it can have?
cbse
class12
modelpaper
2012
sec-a
q2
q2-1
ch3
easy
math
asked
Feb 2, 2013
by
thanvigandhi_1
1
answer
What is the order of the matrix $A=\begin{bmatrix} a & 1 & x \\ 2 & \sqrt 3 & x^2 y \\ 0 & 5 & \frac{2}{5} \end{bmatrix}$
cbse
class12
ch3
q2
q2-1
p52
short-answer
exemplar
sec-a
math
asked
Dec 21, 2012
by
sreemathi.v
1
answer
Classify the following measures as scalars and vectors. $(i)\;10\: kg$
cbse
class12
bookproblem
ch10
ex-1
q2
q2-1
p428
sec-a
easy
math
asked
Dec 7, 2012
by
thanvigandhi_1
1
answer
verify that the given function (implicit or explicit) is a solution of the corresponding differential equation
cbse
class12
bookproblem
ch9
misc
q2
q2-1
p420
medium
math
sec-a
asked
Nov 29, 2012
by
sreemathi.v
1
answer
Write Minors and Cofactors of the elements of following determinants: $ (i) \quad \begin{vmatrix} 1&0&0 \\ 0&1&0 \\ 0&0&1 \end{vmatrix} $
cbse
class12
bookproblem
ch4
sec4
q2
q2-1
p126
easy
sec-a
math
asked
Nov 29, 2012
by
balaji.thirumalai
1
answer
Evaluate the determinant: $\begin{vmatrix} cos\theta &-sin\theta \\ sin\theta & cos\theta \end{vmatrix}$
cbse
class12
bookproblem
ch4
sec1
q2
q2-1
p108
easy
sec-a
math
asked
Nov 28, 2012
by
balaji.thirumalai
1
answer
Find the maximum and minimum values, if any, of the following functions given by $ f (x) = |x + 2| - 1$
cbse
class12
bookproblem
ch6
sec5
q2
q2-1
p232
sec-a
easy
math
asked
Nov 26, 2012
by
thanvigandhi_1
1
answer
if $ A = \begin{bmatrix} -1 & 2 & 3 \\ 5 & 7 & 9 \\ -2 & 1 & 1 \end{bmatrix} \text{ and } B = \begin{bmatrix} -4 & 1 & -5 \\ 1 & 2 & 0 \\ 1 & 3 & 1 \end{bmatrix} \text{, then verify that } $ $$ \text{ (i) } (A+B)' = A' + B' $$
cbse
class12
bookproblem
ch3
sec3
q2
p88
easy
sec-b
q2-1
math
asked
Nov 25, 2012
by
pady_1
1
answer
Let \(f,\, g\, and\, h\) be functions from \(R\, to\, R.\) Show that \[ (f+g) oh = foh + goh\]
cbse
class12
bookproblem
ch1
sec3
q2
p18
easy
sec-a
q2-1
math
asked
Nov 9, 2012
by
vaishali.a
1
answer
Check the injectivity and surjectivity of the function: $f : N\to N\; given\; by\; f(x)\; = x^2 $
cbse
class12
bookproblem
ch1
sec2
q2
q2-1
p10
easy
sec-b
math
asked
Nov 8, 2012
by
vaishali.a
1
answer
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