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Recent questions tagged q3
Questions
If $f:[-6,6] \to \Re$ is defined by $f(x)=x^2-3$ for $x \in \Re$, then $(f0f0f)(-l)+(f0f0f)(0)+(f0f0f)(l)=$
jeemain
eamcet
math
2008
q3
asked
Oct 16, 2013
by
meena.p
1
answer
A DNA double helix is 340 nm long. The number of nucleotides in this DNA is
jeemain
eamcet
biology
2012
q3
asked
Oct 15, 2013
by
thanvigandhi_1
1
answer
The sides of a triangle inscribed in a given circle .Subtend angles of $\alpha,\beta$ and $\gamma$ at the centre.The minimum value of the arithemetic mean of $\cos(\alpha+\pi/2),\cos(\beta+\pi/2)$ and $\cos(\gamma+\pi/2)$ is equal to
jeemain
math
class11
ch3
trigonometric-functions
q3
trignometric-equations
medium
asked
Oct 14, 2013
by
sreemathi.v
1
answer
Using mathematical induction, the numbers $a_n\;'s$ are defined by, $a_0=1,a_{n+1}=3n^2+n+a_n( n \geq 0)$. Then $a_n=$
jeemain
eamcet
math
2009
q3
asked
Oct 8, 2013
by
meena.p
1
answer
Which one is not periodic
jeemain
math
class11
ch3
trigonometric-functions
q3
angles
easy
asked
Oct 4, 2013
by
sreemathi.v
1
answer
The elastic energy stored in a write of young's modulus Y is
jeemain
physics
class11
unit7
properties-of-solids-and-fluids
q3
easy
asked
Oct 2, 2013
by
meena.p
1
answer
The cell organelle bounded by single unit membrane which was first reported by Rhodin is involved in the following reaction :
jeemain
eamcet
biology
2013
q3
asked
Oct 1, 2013
by
thanvigandhi_1
1
answer
The numbers $a_n=6^n-5n$ for $n=1,2,3,.....$ when divided by 25 leave the remainder:
jeemain
eamcet
math
2010
q3
asked
Sep 26, 2013
by
meena.p
1
answer
If $y=(1+x)(1+x^2)(1+x^4)........(1+x^{2^{n}}),$ then $\bigg(\large\frac{dy}{dx}\bigg)_{x =0}=$
jeemain
eamcet
math
2011
q3
asked
Sep 20, 2013
by
meena.p
1
answer
If I is the identify matrix of order 2 and $A= \begin {bmatrix} 1 & 1 \\ 0 & 1 \end{bmatrix}$, then for $ n \geq 1$, mathematical induction gives
jeemain
eamcet
math
2013
q3
asked
Sep 13, 2013
by
meena.p
1
answer
The area between the curve $y=1-|x| $ and the x-axis is ............... .
jeemain
eamcet
math
1991
fitb
q3
asked
Sep 13, 2013
by
meena.p
0
answers
The orthocentre of a triangle whose vertices are $(0,0),(8,0),(4,6), $ is :
jeemain
eamcet
math
1991
q3
asked
Sep 12, 2013
by
meena.p
1
answer
When $4p$ orbital in any atom is filled completely, the next electron goes in
jeemain
eamcet
chemistry
1991
q3
asked
Sep 11, 2013
by
meena.p
1
answer
The energy level stationed at the center of forbidden energy gap of an intrinsic semiconductor is .............. .
jeemain
eamcet
physics
1991
fitb
q3
asked
Sep 10, 2013
by
meena.p
0
answers
The pair of physical quantities having the same dimensional formula is:
jeemain
eamcet
physics
1991
q3
asked
Sep 10, 2013
by
meena.p
1
answer
Predict the product
jeemain
chemistry
unit22
organic-chemistry
halogens
q3
difficult
asked
Sep 4, 2013
by
sreemathi.v
1
answer
The rate of solvolysis of the following allyl chloride in 50% aqueous ethanol at $44^{\circ}C$ is
jeemain
chemistry
unit22
organic-chemistry
halogens
q3
medium
asked
Aug 23, 2013
by
sreemathi.v
1
answer
$R-L$------------>$R-X$. L is a good leaving group .The rate of the reaction is maximum when $Li-X$ is
jeemain
chemistry
unit22
organic-chemistry
halogens
q3
easy
asked
Aug 21, 2013
by
sreemathi.v
1
answer
The angular speed of the earth is doubled , the value of acceleration due to gravitty (g) at north pole
jeemain
physics
class11
unit6
gravitation
q3
easy
asked
Aug 9, 2013
by
meena.p
1
answer
Find the local maxima and local minima, if any, of the following functions. Find also the local maximum and the local minimum values, as the case may be: $ (viii)\: f (x) = x\sqrt{1-x}$$,x>0$
cbse
class12
bookproblem
ch6
sec5
q3
q3-8
p232
sec-b
easy
math
asked
Aug 7, 2013
by
sreemathi.v
1
answer
Find the local maxima and local minima, if any, of the following functions. Find also the local maximum and the local minimum values, as the case may be: $ (vii)\: f (x) = \large\frac{1}{x^2+2}$
cbse
class12
bookproblem
ch6
sec5
q3
q3-7
p232
sec-a
easy
math
asked
Aug 7, 2013
by
sreemathi.v
1
answer
Find the local maxima and local minima, if any, of the following functions. Find also the local maximum and the local minimum values, as the case may be: $ f (x) =\large\frac{x}{2}$$+\large\frac{2}{x}$$,x>0$
cbse
class12
bookproblem
ch6
sec5
q3
q3-6
p232
sec-a
medium
math
asked
Aug 7, 2013
by
sreemathi.v
1
answer
Find the local maxima and local minima, if any, of the following functions. Find also the local maximum and the local minimum values, as the case may be: $ f (x) =x^3-6x^2+9x+15$
cbse
class12
bookproblem
ch6
sec5
q3
q3-5
p232
sec-b
medium
math
asked
Aug 7, 2013
by
sreemathi.v
1
answer
Find the local maxima and local minima, if any, of the following functions. Find also the local maximum and the local minimum values, as the case may be: $ f (x) =\sin x-\cos x,0 < x <2\pi$
cbse
class12
bookproblem
ch6
sec5
q3
q3-4
p232
sec-b
medium
math
asked
Aug 7, 2013
by
sreemathi.v
1
answer
Find the local maxima and local minima, if any, of the following functions. Find also the local maximum and the local minimum values, as the case may be: $ (iii)\: h(x)=\sin x+\cos x$
cbse
class12
bookproblem
ch6
sec5
q3
q3-3
p232
sec-b
easy
math
asked
Aug 6, 2013
by
sreemathi.v
1
answer
Find the local maxima and local minima, if any, of the following functions. Find also the local maximum and the local minimum values, as the case may be: $ (ii)\: g (x) = x^3-3x$
cbse
class12
bookproblem
ch6
sec5
q3
q3-2
p232
sec-b
easy
math
asked
Aug 6, 2013
by
sreemathi.v
1
answer
A body is moving along a straight line with a constant acceleration and has velocities 6m/s and 8 m/s at points A and B of its path. Find the velocity at mid point of AB
jeemain
physics
class11
unit2
kinematics
motion-in-a-straight-line
kinematic-equation-for-accelerated-motion
q3
easy
asked
Jun 20, 2013
by
meena.p
1
answer
If force, acceleration and time are taken as fundamental qualities, then the dimension of length will be
jeemain
physics
class11
ch2
units-and-measurement
q3
easy
dimensional-formulae-and-analysis
asked
Jun 15, 2013
by
meena.p
1
answer
Prove that if $\omega^3=1$,then (iii) $\large\frac{1}{1+2\omega}-\frac{1}{1+\omega}+\frac{1}{2+\omega}$$=0$
tnstate
class12
bookproblem
ch3
exercise3-5
q3
q3-3
p166
asked
Jun 12, 2013
by
sreemathi.v
1
answer
Prove that if $\omega^3=1$,then (ii) $\bigg(\large\frac{-1+i\sqrt 3}{2}\bigg)^5+\bigg(\large\frac{-1-i\sqrt 3}{2}\bigg)^5$$=-1$
tnstate
class12
bookproblem
ch3
exercise3-5
q3
q3-2
p166
asked
Jun 12, 2013
by
sreemathi.v
1
answer
Prove that if $\omega^3=1$,then (i) $(a+b+c)(a+b\omega+c\omega^2)(a+b\omega^2+c\omega)=a^3+b^3+c^3-3abc$
tnstate
class12
bookproblem
ch3
exercise3-5
q3
q3-1
p166
asked
Jun 12, 2013
by
sreemathi.v
1
answer
If $\cos \alpha +\cos \beta + \cos \gamma = 0 = \sin \alpha + \sin \beta + \sin \gamma$, prove that $\cos 2\alpha + \cos 2\beta + \cos 2\gamma = 0$
tnstate
class12
bookproblem
ch3
exercise3-4
q3
q3-3
p157
jun-2006
modelpaper
asked
Jun 11, 2013
by
sreemathi.v
1
answer
If $\cos \alpha +\cos \beta + \cos \gamma = 0 = \sin \alpha + \sin \beta + \sin \gamma$, prove that $\sin 3\alpha + \sin 3\beta + \sin 3\gamma = 3 \sin\left ( \alpha +\beta + \gamma \right )$
tnstate
class12
bookproblem
ch3
exercise3-4
q3
q3-2
p157
asked
Jun 11, 2013
by
sreemathi.v
1
answer
If $z^2=(0,1)$ find $z$.
tnstate
class12
bookproblem
ch3
sec3
exercise3-2
q3
p150
asked
Jun 7, 2013
by
sreemathi.v
1
answer
Classify the following as scalar and vector quantities. $ (v)\;$work done
cbse
class12
bookproblem
ch10
sec1
q3
q3-5
p428
sec-a
easy
math
asked
May 16, 2013
by
sreemathi.v
1
answer
Classify the following as scalar and vector quantities. $ (iv)\; $velocity.
cbse
class12
bookproblem
ch10
sec1
q3
q3-4
p428
sec-a
easy
math
asked
May 16, 2013
by
sreemathi.v
1
answer
Classify the following as scalar and vector quantities. $ (iii)\; $force.
cbse
class12
bookproblem
ch10
sec1
q3
q3-3
p428
sec-a
easy
math
asked
May 16, 2013
by
sreemathi.v
1
answer
Classify the following as scalar and vector quantities. $ $distance.
cbse
class12
bookproblem
ch10
sec1
q3
q3-2
p428
sec-a
easy
math
asked
May 16, 2013
by
sreemathi.v
1
answer
The velocity $v$ of a particle moving along a straight line when at a distance $x$ from the origin is given by $a+by^{2}=x^{2}$ where $a$ and $b$ are constants. Then the acceleration is
tnstate
class12
bookproblem
p229
objective
q3
modelpaper
mar-2009
asked
May 15, 2013
by
poojasapani_1
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
by
rvidyagovindarajan_1
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
by
rvidyagovindarajan_1
1
answer
If A=$\begin{bmatrix} 2& 0& 1 \end{bmatrix}$ than the rank of $AA^{T}$is
tnstate
class12
bookproblem
p263
objective
q3
modelpaper
oct-2006
mar-2008
jun-2009
asked
May 6, 2013
by
poojasapani_1
1
answer
Show that of all the rectangles with a given area the one with smallest perimeter is a square.
tnstate
class12
bookproblem
ch5
sec-1
exercise5-10
p60
q3
asked
May 5, 2013
by
poojasapani_1
1
answer
Find the local maximum and minimum values of the following: $t+ \cos t$
tnstate
class12
bookproblem
ch5
sec-1
exercise5-9
p53
q3
q3-6
asked
May 5, 2013
by
poojasapani_1
1
answer
Find the local maximum and minimum values of the following: $\sin^{2} \theta , [0 ,\pi ]$
tnstate
class12
bookproblem
ch5
sec-1
exercise5-9
p53
q3
q3-5
asked
May 5, 2013
by
poojasapani_1
1
answer
Find the local maximum and minimum values of the following: $(x^{2}-1)^{3}$
tnstate
class12
bookproblem
ch5
sec-1
exercise5-9
p53
q3
q3-4
asked
May 5, 2013
by
poojasapani_1
1
answer
Find the local maximum and minimum values of the following: $x^{4}-6x^{2}$
tnstate
class12
bookproblem
ch5
sec-1
exercise5-9
p53
q3
q3-3
asked
May 5, 2013
by
poojasapani_1
1
answer
Find the local maximum and minimum values of the following: $2x^{3}+5x^{2}-4x $
tnstate
class12
bookproblem
ch5
sec-1
exercise5-9
p53
q3
q3-2
asked
May 5, 2013
by
poojasapani_1
1
answer
Find the local maximum and minimum values of the following: $x^{3}-x$
tnstate
class12
bookproblem
ch5
sec-1
exercise5-9
p53
q3
q3-1
asked
May 5, 2013
by
poojasapani_1
1
answer
Which of the following function are increasing or decreasing on the interval given? \[\] $x\sin x$ on$ [0 , \large\frac{\pi}{4}]$
tnstate
class12
bookproblem
ch5
sec-1
exercise5-7
p41
q3
q3-5
asked
May 4, 2013
by
poojasapani_1
1
answer
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