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Recent questions tagged q6
Questions
Prove that \[\] $2.7^n+3.5^n-5$ is divisible by 24, for all $n \in N$.
cbse
class11
ch4
mathematical-induction
bookproblem
sec3
examples
q6
asked
May 3, 2014
by
thanvigandhi_1
1
answer
If $y=[x+\sqrt {x^2+1} ]^m$ show that $(x^2+1)y_2 +x y_1-m^2y=0$
cbse
class12
ch5
additionalproblem
q6
asked
May 1, 2014
by
meena.p
0
answers
Prove the following by using the principle of mathematical induction for all $n \in N$ \[\] $1.2+2.3+3.4+...+n.(n+1) \bigg[ \large\frac{n(n+1)(n+2)}{3} \bigg]$
cbse
class11
ch4
mathematical-induction
bookproblem
sec3
exercise-4.1
q6
asked
Apr 29, 2014
by
thanvigandhi_1
1
answer
Prove that $\large\frac{(\sin 7x+\sin 5x)+(\sin 9x+\sin 3x)}{(\cos 7x+\cos 5x)+(\cos 9x+\cos 3x)}$$=\tan 6x$
cbse
math
class11
ch3
trigonometric-functions
bookproblem
misc
q6
sec-b
medium
asked
Apr 18, 2014
by
sreemathi.v
1
answer
Find the general solution for the equation $\cos 3x+\cos x-\cos 2x=0$
cbse
math
class11
ch3
trigonometric-functions
bookproblem
exercise3-4
q6
sec-b
medium
asked
Apr 18, 2014
by
sreemathi.v
1
answer
Prove : $\cos(\large\frac{\pi}{4}$$-x)\cos (\large\frac{\pi}{4}$$-y)-\sin(\large\frac{\pi}{4}$$-x)\sin (\large\frac{\pi}{4}$$-y)=\sin (x+y)$
cbse
math
class11
ch3
trigonometric-functions
bookproblem
exercise3-3
q6
sec-b
medium
asked
Apr 17, 2014
by
sreemathi.v
1
answer
Find the value of the trigonometric function $\sin 765^{\large\circ}$
cbse
math
class11
ch3
trigonometric-functions
bookproblem
exercise3-2
q6
sec-a
easy
asked
Apr 17, 2014
by
sreemathi.v
1
answer
If in two circles arcs of the same length subtend angles $60^{\large\circ}$ and $75^{\large\circ}$ at the centre,find the ratio of their radii
cbse
math
class11
ch3
trigonometric-functions
bookproblem
exercise3-1
q6
sec-b
medium
asked
Apr 16, 2014
by
sreemathi.v
1
answer
Find the derivative of the following functions ( it is to be understood that a, b, c, d, p, q, r and s are fixed non-zero constants and m and n are integers ) $\large\frac{1+\Large\frac{1}{x}}{1-\Large\frac{1}{x}}$
math
cbse
class11
ch13
limits-and-derivatives
bookproblem
misc
p317-318
q6
asked
Apr 12, 2014
by
thanvigandhi_1
1
answer
Find the $13th$ term in the expansion of $\large ($$9x$$-\large \frac{1}{3\sqrt x})^{\normalsize 18}$$, x\neq 0$
cl37679
cl37677
cl37674
binomial-theorem
cbse
class11
math
ch8
exercise8-2
sec3
general-and-middle-terms
q6
sec-a
easy
asked
Apr 10, 2014
by
balaji.thirumalai
1
answer
Using Binomial Theorem, evaluate $96^3$.
binomial-theorem
cbse
class11
math
ch8
exercise8-1
sec2
binomial-theorem-for-positive-integral-indices
q6
easy
sec-a
asked
Apr 10, 2014
by
balaji.thirumalai
1
answer
Find the derivatives of $x^n+ax^{n-1}+a^2x^{n-2}+...+a^{n-1}x+a^n$ for some fixed real number $a$
math
cbse
class11
ch13
limits-and-derivatives
bookproblem
derivatives
exercise13-2
p312-313
q6
asked
Apr 9, 2014
by
thanvigandhi_1
1
answer
Find the area of a triangle formed by the lines joining the vertex of the parabola $x^2 = 12y$ to the ends of its latus rectum.
cbse
class11
math
conic-sections
hyperbola
exercise11-misc
misc
q6
sec-b
easy
asked
Apr 8, 2014
by
balaji.thirumalai
1
answer
Find the coordinates of the foci and the vertices, the eccentricity and the length of the latus rectum of the hyperbola $\; 49y^2-16x^2=784$
cl37065
cbse
class11
math
conic-sections
hyperbola
exercise11-4
sec4
easy
sec-a
q6
asked
Apr 8, 2014
by
balaji.thirumalai
1
answer
Match List- I (Electromagnetic wave type) with List-II (Its association/application) and select the correct option from the choices given below the lists :
jeemain
jeemain-2014
physics
q6
medium
asked
Apr 7, 2014
by
meena.p
1
answer
Evaluate the following limits $ \lim\limits_{x \to 0} \large\frac{(x+1)^5-1}{x}$
math
cbse
class11
ch13
limits-and-derivatives
bookproblem
limits
exercise13-1
p301-303
q6
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 $\large\frac{x^2}{100}$$+\large\frac{y^2}{400}$$=1$
cl35310
cl35306
cl35304
math
cbse
class11
ch11
exercise11-3
conic-sections
ellipse
q6
easy
sec-b
asked
Apr 1, 2014
by
balaji.thirumalai
1
answer
Find the co-ordinates of the focus, axis of the parabola, equations of the directrix and length of latus rectum of the parabola $x^2=-9y$
cl35282
cl35280
cl35278
cl35276
cbse
class11
ch11
exercise11-2
parabola
conic-sections
easy
sec-a
q6
math
asked
Apr 1, 2014
by
balaji.thirumalai
1
answer
Find the centre and radius of the circle $(x+5)^2 + (y-3)^2 = 36$
cl35190
cbse
class11
ch11
exercise11-1
circle
conic-sections
q6
easy
sec-a
math
asked
Apr 1, 2014
by
balaji.thirumalai
1
answer
Find the sum of all two digit numbers which when divided by $4$ yields $1$ as remainder.
cbse
class11
ch9
bookproblem
misc
sec-b
easy
q6
math
sequences-and-series
asked
Mar 29, 2014
by
rvidyagovindarajan_1
1
answer
The constituent units of sucrose are
jeemain
aipmt
chemistry
biomolecules
organic-chemistry
cbse
class12
unit16
easy
q6
asked
Mar 27, 2014
by
thanvigandhi_1
1
answer
Find the value of 'P' for which the vectors $ 3 \hat i + 2 \hat j + 2 \hat k$ and $ \hat i - 2P \hat j + 3 \hat k $ are parallel.
modelpaper-2014-chennai
cbse
class12
math
sec-a
q6
asked
Mar 25, 2014
by
thanvigandhi_1
1
answer
Which of the statements about the two structures are correct?
jeemain
aipmt
chemistry
nitrogen
organic-chemistry
cbse
class12
unit13
q6
easy
asked
Mar 21, 2014
by
thanvigandhi_1
1
answer
Find the value of the following:\[cos^{-1} \big(- \frac {1} {2} \big)+2 sin^{-1}\frac {1} {2} \]
cbse
modelpaper-2014
65-2-3
sec-a
q6
asked
Mar 20, 2014
by
rvidyagovindarajan_1
1
answer
Among the following the maximum amount of carbon present in
jeemain
cbse
chemistry
class12
unit6
general-principals-and-processes-of-isolation-of-metals
q6
medium
asked
Mar 17, 2014
by
meena.p
1
answer
Find the sum of $n$ terms of the series $(3\times 8)+(6\times 11)+(9\times 14).............$
cbse
class11
ch9
bookproblem
exercise9-4
sec-c
medium
q6
math
sequences-and-series
asked
Mar 13, 2014
by
rvidyagovindarajan_1
1
answer
Ethanol boils at $78.4^{\circ}C$, the enthalpy of vaporization of ethanol is $42.4\: kJ/mol$. Calculate entropy of vaporization of ethanol.
jeemain
physics
thermodynamics
cbse
class11
class12
q6
easy
asked
Mar 13, 2014
by
thanvigandhi_1
1
answer
The inter particle forces between linear chains in Nylon-66 are
jeemain
aipmt
chemistry
cbse
unit5
class12
organic-chemistry
polymers
q6
easy
asked
Mar 6, 2014
by
thanvigandhi_1
1
answer
The correct sequence regarding base strength of aliphatic amines in gaseous phase is
jeemain
chemistry
unit13
class12
organic-chemistry
nitrogen
amines
q6
easy
asked
Feb 27, 2014
by
sreemathi.v
1
answer
For what value of $x$ the numbers $-\large\frac{2}{7},$$x,-\large\frac{7}{2}$ are in G.P.?
cbse
class11
ch9
bookproblem
exercise9-3
sec-a
easy
q6
math
sequences-and-series
asked
Feb 25, 2014
by
rvidyagovindarajan_1
1
answer
If the sum of certain number of terms of the A.P., $25,22,19................$ is $116$, then find the last term.
cbse
class11
ch9
bookproblem
exercise9-2
medium
sec-b
q6
math
sequences-and-series
asked
Feb 20, 2014
by
rvidyagovindarajan_1
1
answer
In the given conformation, if $C_2$ is rotated $C_2 -C_3$ bond anticlockwise by an angle of $120^{\circ}$ then the conformation obtained is
jeemain
chemistry
class11
organic-chemistry
q6
easy
basic-organic-chemistry
ch12
asked
Feb 20, 2014
by
meena.p
1
answer
Which of the following statements regarding aldehyde is not correct?
jeemain
chemistry
unit11
unit12
class12
organic-chemistry
oxygen
aldehyde-and-ketones
q6
easy
asked
Feb 19, 2014
by
sreemathi.v
1
answer
Find the first 5 terms of the sequence whose general term is $t_n=n.\large\frac{n^2+5}{4}$
cbse
class11
bookproblem
ch9
exercise9-1
sec-a
q6
easy
math
sequences-and-series
asked
Feb 17, 2014
by
rvidyagovindarajan_1
1
answer
Molarity of NaOH solution containing 5g of NaOH in 450ml of solution?
jeemain
chemistry
class12
unit2
solutions
q6
easy
asked
Feb 12, 2014
by
sreemathi.v
1
answer
Value of gas Constant R is
jeemain
chemistry
physical-chemistry
class11
unit5
states-of-matter
ideal-gas-equation
easy
q6
asked
Feb 12, 2014
by
sharmaaparna1
1
answer
Find the value of $m$ and $c$ if the straight line ( equation is $y=mx +c$ ) passes through the point $A(2,3)$ and $B(1,6)$.
jeemain
math
class11
coordinate-geometry
straight-lines
equations-of-a-line
ch10
q6
easy
asked
Feb 4, 2014
by
sreemathi.v
1
answer
If $x= \sec \theta -\cos \theta $ and $y=\sec^n \theta -\cos ^n \theta$ then $\bigg(\large\frac{dy}{dx}\bigg)^2=$
jeemain
math
class12
ch9
differential-equations
linear-differential-equations
q6
difficult
asked
Jan 31, 2014
by
meena.p
1
answer
The primary valency of 'Fe' in complex $K_4[Fe(CN)_6]$ is
jeemain
chemistry
class12
coordination-compounds
unit9
q6
easy
asked
Jan 31, 2014
by
sreemathi.v
1
answer
The outer electronic configuration of radio active element present in 1A group is
jeemain
chemistry
class11
s-block-elements
unit10
q6
easy
asked
Jan 27, 2014
by
sreemathi.v
1
answer
Which of the following are incorrect statements about a transistor?
jeemain
physics
class12
unit19
ch14
q6
medium
concepts
semiconductor-electronics
pn-junction
transistors
asked
Jan 27, 2014
by
meena.p
1
answer
Given : $P(x) =x^4 + ax^3 + bx^2 + cx + d$ such that $x=0$ is the real root of $P'(x)=0$. If $P(-1) < P(1)$, then in the interval $[-1, 1]$, which of the following statement is wrong.
jeemain
math
mathematical-reasoning
class11
ch14
difficult
implications-(tautology-contradiction.)
q6
asked
Jan 22, 2014
by
thanvigandhi_1
1
answer
Tritium emits
jeemain
chemistry
class11
hydrogen
unit9
q6
easy
asked
Jan 22, 2014
by
sreemathi.v
1
answer
Three samples of water A,B and C have the D.O levels of 4ppm,and 3.8ppm and 2.1ppm respectively the most polluted sample of water is
jeemain
chemistry
class11
environmental-chemistry
unit14
q6
easy
asked
Jan 20, 2014
by
sreemathi.v
1
answer
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