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Recent questions tagged q9
Questions
Find the derivative of the following functions ( it is to be understood that a, b, c, d, p, q, r and s are fixed non-zero constants and m and n are integers ) $\large\frac{px^2+qx+r}{ax+b}$
math
cbse
class11
ch13
limits-and-derivatives
bookproblem
misc
p317-318
q9
asked
Apr 12, 2014
by
thanvigandhi_1
1
answer
In the expansion of $(1 + a)^{m+n}$, prove that coefficients of $a^m$ and $a^n$ are equal.
binomial-theorem
cbse
class11
math
ch8
exercise8-2
sec3
general-and-middle-terms
q9
sec-a
easy
asked
Apr 10, 2014
by
balaji.thirumalai
1
answer
Using Binomial Theorem, evaluate $99^5$
cl37632
binomial-theorem
cbse
class11
math
ch8
exercise8-1
sec2
binomial-theorem-for-positive-integral-indices
q9
easy
sec-a
asked
Apr 10, 2014
by
balaji.thirumalai
1
answer
Find the equations of the hyperbola satisfying the given conditions: Vertices: $(0,\pm 3)$, Foci: $(0,\pm 5)$
cl37072
cl37068
cl37065
cbse
class11
math
conic-sections
hyperbola
exercise11-4
sec4
easy
sec-a
q9
asked
Apr 8, 2014
by
balaji.thirumalai
1
answer
Four particles, each of mass M and equidistant from each other, move along a circle of radius R under the action of their mutual gravitational attraction. The speed of each particle is
jeemain
jeemain-2014
physics
q9
medium
asked
Apr 7, 2014
by
meena.p
2
answers
Evaluate the following limits $ \lim\limits_{x \to 0} \large\frac{ax+b}{cx+1}$
math
cbse
class11
ch13
limits-and-derivatives
bookproblem
limits
exercise13-1
p301-303
q9
asked
Apr 3, 2014
by
thanvigandhi_1
1
answer
Find the coordinates of the foci, the vertices, the length of the major axis, the minor axis, the eccentricity and the length of the latus rectum of the ellipse $4x^2+9y^2=36$
cl35312
cl35308
cl35304
math
cbse
class11
ch11
exercise11-3
conic-sections
ellipse
q9
easy
sec-b
asked
Apr 2, 2014
by
balaji.thirumalai
1
answer
Find the equation of the parabola that satisfies the given conditions: Vertex $(0,0)$ and Focus $(3,0)$
cl35290
cl35288
cbse
class11
ch11
exercise11-2
parabola
conic-sections
easy
sec-a
math
q9
asked
Apr 1, 2014
by
balaji.thirumalai
1
answer
Find the centre and radius of the circle $2x^2+2y^2-x = 0$
cl35220
cl35216
cl35212
cl35190
cbse
class11
ch11
exercise11-1
circle
conic-sections
q9
easy
sec-a
math
asked
Apr 1, 2014
by
balaji.thirumalai
1
answer
The first term of a G.P. is $1$. The sum of third term and fifth term is $90$. Find the common ratio of the G.P.
cbse
class11
ch9
bookproblem
misc
sec-b
easy
q9
math
sequences-and-series
asked
Mar 30, 2014
by
rvidyagovindarajan_1
1
answer
$ \alpha $-helix refers to
jeemain
aipmt
chemistry
biomolecules
organic-chemistry
cbse
class12
unit16
easy
q9
asked
Mar 27, 2014
by
thanvigandhi_1
1
answer
Find the sum of $n$ terms of the series whose $n^{th}$ term is given by $n^2+2^n$.
cbse
class11
ch9
bookproblem
exercise9-4
medium
sec-b
q9
math
sequences-and-series
asked
Mar 24, 2014
by
rvidyagovindarajan_1
1
answer
Write the value of the following: $\hat i \times (\hat j + \hat k)+ $$\hat j \times (\hat k + \hat i)+ $$\hat k \times (\hat i + \hat j)$
cbse
class12
ch10
modelpaper-2014
sec-a
q9
easy
math
asked
Mar 21, 2014
by
balaji
1
answer
Oxidation of aniline with $k_2Cr_2O_7/H_2SO_4$ gives
jeemain
aipmt
chemistry
nitrogen
organic-chemistry
cbse
class12
unit13
q9
easy
asked
Mar 21, 2014
by
thanvigandhi_1
1
answer
Find the value of $\hat i\times (\hat j+\hat k)+\hat j\times (\hat k+\hat i)+\hat k\times (\hat i+\hat j)$
cbse
class12
modelpaper-2014
65-2-3
sec-a
q9
math
asked
Mar 21, 2014
by
rvidyagovindarajan_1
1
answer
The purest zinc is made
jeemain
cbse
chemistry
class12
unit6
general-principals-and-processes-of-isolation-of-metals
q9
medium
asked
Mar 17, 2014
by
meena.p
1
answer
Calculate the entropy change for the reaction \[\] $CO(g) + \large\frac{1}{2}$ $O_2(g) \rightarrow CO_2(g);\: \: \: \: \: \Delta S^o_{CO2} = 213.6\: J/Kmol, \Delta S^o_{CO }= 197.6\: J/Kmol, \Delta S^o_{O2} = 205.03 \: J/Kmol$
jeemain
physics
thermodynamics
cbse
class11
class12
q9
easy
asked
Mar 13, 2014
by
thanvigandhi_1
1
answer
Among the following the correct statement is
jeemain
chemistry
physical-chemistry
class11
unit4
chemical-bonding-and-molecular-structure
molecular-orbital-theory
q9
difficult
asked
Mar 10, 2014
by
sreemathi.v
1
answer
The monomer of PVC is
jeemain
aipmt
chemistry
cbse
unit5
class12
organic-chemistry
polymers
q9
easy
asked
Mar 6, 2014
by
thanvigandhi_1
1
answer
The major product obtained in the following reaction is
jeemain
chemistry
unit13
class12
organic-chemistry
nitrogen
amines
q9
easy
asked
Feb 28, 2014
by
sreemathi.v
1
answer
Find the sum up to $n$ terms of the G.P. $1,-a,a^2,-a^3.........$
cbse
class11
ch9
bookproblem
exercise9-3
sec-a
easy
q9
math
sequences-and-series
asked
Feb 26, 2014
by
rvidyagovindarajan_1
1
answer
The sum of $n$ terms of two $A.P.s$ are in the ratio $5n+4:9n+6$ Find the ratio of their $18^{th}$ terms.
cbse
class11
ch9
bookproblem
exercise9-2
sec-b
medium
q9
math
sequences-and-series
asked
Feb 22, 2014
by
rvidyagovindarajan_1
1
answer
Among the following, the compound that can be most readily sulphonated is
jeemain
chemistry
class11
organic-chemistry
q9
easy
basic-organic-chemistry
ch12
asked
Feb 20, 2014
by
meena.p
1
answer
Refer the below reaction :
jeemain
chemistry
unit11
unit12
class12
organic-chemistry
oxygen
aldehyde-and-ketones
q9
easy
asked
Feb 19, 2014
by
sreemathi.v
1
answer
Find $a_9$ if $a_n=(-1)^{n-1}.n^3$
cbse
class11
ch9
bookproblem
exercise9-1
easy
sec-a
q9
math
sequences-and-series
asked
Feb 18, 2014
by
rvidyagovindarajan_1
1
answer
According to kinetic theory of gases in an ideal gas between two successive collisions a gas molecule travels:
jeemain
chemistry
physical-chemistry
class11
unit5
states-of-matter
kinetic-molecular-theory-of-gases
easy
q9
asked
Feb 12, 2014
by
sharmaaparna1
1
answer
The length of perpendicular from the origin to a line is 6 and line makes an angle of $145^{\large\circ}$ with the positive direction of y-axis .Find the equation of line.
jeemain
math
class11
coordinate-geometry
straight-lines
equations-of-a-line
ch10
q9
easy
asked
Feb 4, 2014
by
sreemathi.v
1
answer
General solution of differential equations: $e^y dx+(xe^y-2y)dy=0$
jeemain
math
class12
ch9
differential-equations
solving-using-separation-of-variables
q9
medium
asked
Feb 3, 2014
by
meena.p
1
answer
Hydrazinium ion is
jeemain
chemistry
class12
coordination-compounds
unit9
q9
easy
asked
Jan 31, 2014
by
sreemathi.v
1
answer
A p type semiconductor has acceptor level of 50 mev above the valance band. Find the maximum wave length of light which can create a hole.
jeemain
physics
class12
unit19
ch14
q9
easy
intrinsic-and-extrinsic-semiconductor
semiconductor-electronics
asked
Jan 27, 2014
by
meena.p
1
answer
Chlorine can give highly ionic compound with
jeemain
chemistry
class11
s-block-elements
unit10
q9
easy
asked
Jan 27, 2014
by
sreemathi.v
1
answer
The first two terms of a geometric progression add up to 12. The terms of the G.P. are alternately positive and negative.The statement - The sum of the third and the fourth terms is 48 holds true for the first term being
jeemain
math
mathematical-reasoning
class11
ch14
difficult
implications-(tautology-contradiction.)
q9
asked
Jan 23, 2014
by
thanvigandhi_1
1
answer
The number of isotopes of hydrogen are
jeemain
chemistry
class11
hydrogen
unit9
q9
easy
asked
Jan 22, 2014
by
sreemathi.v
1
answer
The sentence "____ if and only if $ x + x = 3x$" is TRUE. Which of the following could be used to fill in the blank?
jeemain
math
mathematical-reasoning
class11
ch14
medium
statements
q9
asked
Jan 20, 2014
by
thanvigandhi_1
1
answer
The sentence "____ if and only if $ x + x = 3x$" is TRUE. Which of the following could be used to fill in the blank?
jeemain
math
mathematical-reasoning
class11
ch14
medium
statements
q9
asked
Jan 20, 2014
by
thanvigandhi_1
0
answers
Composition of PAN is
jeemain
chemistry
class11
environmental-chemistry
unit14
q9
easy
asked
Jan 20, 2014
by
sreemathi.v
1
answer
When Y = 3, which of the following is FALSE?
jeemain
math
mathematical-reasoning
class11
ch14
easy
statements
q9
asked
Jan 17, 2014
by
thanvigandhi_1
1
answer
Find the wave length of radiation required to excite the electron in ground level of $Li^{++}(z=3)$ to third energy level.Also find the ionization energy of $Li^{2+}$.(R=$1.097\times 10^7m^{-1})$
jeemain
chemistry
physical-chemistry
class11
unit2
atomic-structure
bhor's-model
q9
medium
asked
Jan 9, 2014
by
sreemathi.v
1
answer
A pair of dice is rolled together till a sum of either 5 or 7 is obtained. The probability that 5 comes before 7 is
jeemain
math
cbse
class12
probability
conditional-probability
difficult
q9
asked
Jan 8, 2014
by
thanvigandhi_1
1
answer
A determinant is chosen at random from the set of all determinants of order 2 with elements 0 and 1 only. The probability that the determinant chosen is non-zero is
jeemain
math
cbse
class11
probability
random-experiements
medium
q9
asked
Jan 6, 2014
by
thanvigandhi_1
1
answer
Three coins are tossed. The probability that not more than two coins will fall with head upwards is
jeemain
math
cbse
class12
probability
easy
q9
asked
Jan 2, 2014
by
thanvigandhi_1
1
answer
Find the sum of the series $1^2$ - $2^2$ + $3^2$ - $4^2$ + $5^2$ - $6^2$.....$1000^2$.
jeemain
math
class11
ch9
sequences-and-series
easy
sum-of-n-terms-of-special-series
q9
asked
Dec 31, 2013
by
yamini.v
1
answer
If $P$ is the point of intersection of the line joining the points $Q(2,3,5)\:\:and\:\:R(1,-1,4)$ with the plane $5x-4y-z-1=0$. If $S$ is foot of $\perp$ drawn from the point $T(2,1,4)$ to the line $QR$, then the length of segment $\overrightarrow {PS}$ = ?
jeemain
math
class12
ch11
3d-geometry
intersection-of-a-line-and-a-plane
difficult
q9
asked
Dec 25, 2013
by
rvidyagovindarajan_1
1
answer
If $f(x)=\sqrt{\large\frac{x-\sin x}{x+\cos^2x}}$ then $\lim\limits_{x\to \infty}f(x)$ is
jeemain
math
class11
ch13
limits-and-derivatives
limits-of-trigonometric-functions
easy
q9
asked
Dec 20, 2013
by
sreemathi.v
1
answer
Water falls from a height of 60 m at the rate of 15 kg/s to operate a turbine. The losses due to frictional forces are 10% of energy . How much power is generated by the turbine ? $( g = 10\: m/s^2)$
aipmt
modelpaper
physics
2008
q9
asked
Dec 14, 2013
by
thanvigandhi_1
0
answers
Integrate : $\int \limits_0^{\infty} \large\frac{1}{(x^2+g^2)^7}dx$
jeemain
math
class12
ch7
integral-calculus
definite-integrals-by-substitution
medium
q9
asked
Dec 12, 2013
by
meena.p
1
answer
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