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Recent questions tagged easy
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Using differentials, find the approximate value of each of the following up to 3 places of decimal. $(xiii)\;(81.5)^{\Large\frac{1}{4}}$
cbse
class12
bookproblem
ch6
sec4
q1
q1-13
p216
sec-b
easy
math
asked
Aug 5, 2013
by
sreemathi.v
1
answer
Using differentials, find the approximate value of each of the following up to 3 places of decimal. $(xii)\;(26.57)^{\Large\frac{1}{3}}$
cbse
class12
bookproblem
ch6
sec4
q1
q1-12
p216
sec-b
easy
math
asked
Aug 5, 2013
by
sreemathi.v
1
answer
Using differentials, find the approximate value of each of the following up to 3 places of decimal. $(xi)\;(0.0037)^{\Large\frac{1}{2}}$
cbse
class12
bookproblem
ch6
sec4
q1
q1-11
p216
sec-b
easy
math
asked
Aug 5, 2013
by
sreemathi.v
1
answer
Using differentials, find the approximate value of each of the following up to 3 places of decimal. $(x)\;(401)^{\Large\frac{1}{2}}$
cbse
class12
bookproblem
ch6
sec4
q1
q1-10
p216
sec-b
easy
math
asked
Aug 5, 2013
by
sreemathi.v
1
answer
Using differentials, find the approximate value of each of the following up to 3 places of decimal. $(ix)\;(82)^{\Large\frac{1}{4}}$
cbse
class12
bookproblem
ch6
sec4
q1
q1-9
p216
sec-b
easy
math
asked
Aug 5, 2013
by
sreemathi.v
1
answer
Using differentials, find the approximate value of each of the following up to 3 places of decimal. $(vii)\;(26)^{\Large\frac{1}{3}}$
cbse
class12
bookproblem
ch6
sec4
q1
q1-7
p216
sec-b
easy
math
asked
Aug 5, 2013
by
sreemathi.v
1
answer
Using differentials, find the approximate value of each of the following up to 3 places of decimal. $(vi)\;(15)^{\Large\frac{1}{4}}$
cbse
class12
bookproblem
ch6
sec4
q1
q1-6
p216
sec-b
easy
math
asked
Aug 5, 2013
by
sreemathi.v
1
answer
Using differentials, find the approximate value of each of the following up to 3 places of decimal. $(iii)\;\sqrt{0.6}$
cbse
class12
bookproblem
ch6
sec4
q1
q1-3
p216
sec-b
easy
math
asked
Aug 5, 2013
by
sreemathi.v
1
answer
Using differentials, find the approximate value of each of the following up to 3 places of decimal. $(ii)\;\sqrt{49.5}$
cbse
class12
bookproblem
ch6
sec4
q1
q1-2
p216
sec-b
easy
math
asked
Aug 5, 2013
by
sreemathi.v
1
answer
The common roots to the equations $z^3+2z^2+2z+1=0\:\:and\:\:z^{149}+z^{100}+1=0$ are
jeemain
math
class11
ch5
complex-numbers-and-quadratic-equations
quadratic-equations
easy
asked
Aug 2, 2013
by
rvidyagovindarajan_1
1
answer
If $R_e\bigg(\large\frac{z-8i}{z+6}\bigg)$$=0$, then $z$ lies in the curve
jeemain
math
class11
ch5
complex-numbers-and-quadratic-equations
algebra-of-complex-numbers
easy
asked
Aug 1, 2013
by
rvidyagovindarajan_1
1
answer
If $n$ is a positive integer, then $(1+i)^n+(1-i)^n=?$
jeemain
math
class11
ch5
complex-numbers-and-quadratic-equations
quadratic-equations
easy
asked
Jul 31, 2013
by
rvidyagovindarajan_1
1
answer
$\large\frac{(cosx+isinx)(cosy+isiny)}{(cotu+i)(1+itanv)}=?$
jeemain
math
class11
ch5
complex-numbers-and-quadratic-equations
algebra-of-complex-numbers
easy
asked
Jul 31, 2013
by
rvidyagovindarajan_1
1
answer
If $ \large\frac{3}{2+\cos\theta+i\sin\theta}=$$x+iy$, then $ (x-1)(x-3)=?$
jeemain
math
class11
ch5
complex-numbers-and-quadratic-equations
algebra-of-complex-numbers
easy
asked
Jul 31, 2013
by
rvidyagovindarajan_1
1
answer
For each of the differential equations given below,indicate its order and degree(if defined) $(iii)\;\large\frac{d^4y}{dx^4}-\sin\big(\large\frac{d^3y}{dx^3}\big)$$=0$
cbse
class12
bookproblem
misc
q1
q1-3
p419
easy
sec-a
math
asked
Jul 29, 2013
by
sreemathi.v
1
answer
For each of the differential equations given below,indicate its order and degree(if defined) $(ii)\;\big(\large\frac{dy}{dx}\big)^3-4\big(\large\frac{dy}{dx}\big)^2+7y=\sin x$
cbse
class12
bookproblem
misc
q1
q1-2
p419
easy
sec-a
math
asked
Jul 29, 2013
by
sreemathi.v
1
answer
If $z_1,z_2$ are any two complex numbers and $a,b$ are two real numbers, then $|az_1-bz_2|^2+|bz_1+az_2|^2=?$
jeemain
math
class11
ch2
complex-numbers-and-quadratic-equations
easy
asked
Jul 28, 2013
by
rvidyagovindarajan_1
1
answer
The complex number $\large\frac{1+2i}{1-i}$ lies in which quadrant?
jeemain
math
class11
ch5
complex-numbers-and-quadratic-equations
algebra-of-complex-numbers
easy
asked
Jul 28, 2013
by
rvidyagovindarajan_1
1
answer
The argument of $\large\frac{1-\sqrt 3i}{1+\sqrt 3i}=?$
jeemain
math
class11
ch5
complex-numbers-and-quadratic-equations
modulus-and-conjugate-of-a-complex-number
easy
asked
Jul 28, 2013
by
rvidyagovindarajan_1
1
answer
If $z$ is a complex number and $a$ is real, then $(z+a)(\overline z+a)=?$
jeemain
math
class11
ch5
complex-numbers-and-quadratic-equations
modulus-and-conjugate-of-a-complex-number
easy
asked
Jul 28, 2013
by
rvidyagovindarajan_1
1
answer
The complex numbers $z$ satisfying $|z|-4=0$ and $ |z-i|-|z+5i|=0$ are ?
jeemain
math
class11
ch5
complex-numbers-and-quadratic-equations
modulus-and-conjugate-of-a-complex-number
easy
asked
Jul 27, 2013
by
rvidyagovindarajan_1
1
answer
The solution set of the equation $|x^2+x|=x^2+x$ is
jeemain
math
class11
ch5
complex-numbers-and-quadratic-equations
quadratic-equations
easy
asked
Jul 27, 2013
by
rvidyagovindarajan_1
1
answer
If the equations $x^2+bx+c=0$ and $x^2+cx+b=0$ have one common root, then
jeemain
math
class11
ch5
complex-numbers-and-quadratic-equations
quadratic-equations
easy
asked
Jul 27, 2013
by
rvidyagovindarajan_1
1
answer
If one root of the eqn., $x^2+px+12=0$ is 4, while the eqn., $x^2+px+q=0$ has equal roots, then the value of $q$=?
jeemain
math
class11
ch5
complex-numbers-and-quadratic-equations
quadratic-equations
easy
asked
Jul 27, 2013
by
rvidyagovindarajan_1
1
answer
If $p>0,\:q>0$, then the roots of $x^2-px-q=0$ are
jeemain
math
class11
ch5
complex-numbers-and-quadratic-equations
algebra-of-complex-numbers
easy
asked
Jul 27, 2013
by
rvidyagovindarajan_1
1
answer
The quadratic eqn., whose one root is $2-\sqrt 3i$ is given by ?
jeemain
math
class11
ch5
complex-numbers-and-quadratic-equations
quadratic-equations
easy
asked
Jul 27, 2013
by
rvidyagovindarajan_1
1
answer
If the roots of the eqn., $ax^2+bx+c=0$ are reciprocal to each other then,
jeemain
math
class11
ch5
complex-numbers-and-quadratic-equations
quadratic-equations
easy
asked
Jul 27, 2013
by
rvidyagovindarajan_1
1
answer
If the eqn., $x^2-m(2x-8)-15=0$ has equal roots, then $m=?$
jeemain
math
class11
ch5
complex-numbers-and-quadratic-equations
quadratic-equations
easy
asked
Jul 27, 2013
by
rvidyagovindarajan_1
1
answer
The numerical difference of the roots of $x^2-6x+6=0$ is ?
jeemain
math
class11
ch5
complex-numbers-and-quadratic-equations
quadratic-equations
easy
asked
Jul 27, 2013
by
rvidyagovindarajan_1
1
answer
If $a>0$, then $\sqrt {a+\sqrt {a+\sqrt{a+............}}}$=?
jeemain
math
class11
ch5
complex-numbers-and-quadratic-equations
quadratic-equations
easy
asked
Jul 27, 2013
by
rvidyagovindarajan_1
1
answer
The ratio of roots of $x^2+bx+c=0$ is same as the ratio of the roots of $x^2+qx+r=0$. Then which of the following is true?
jeemain
math
class11
ch5
complex-numbers-and-quadratic-equations
quadratic-equations
easy
asked
Jul 26, 2013
by
rvidyagovindarajan_1
1
answer
The number of roots of the eqn., $x-\large\frac{2}{x-1}$$=1-\large\frac{2}{x-1}$ is
jeemain
math
class11
ch5
complex-numbers-and-quadratic-equations
quadratic-equations
easy
asked
Jul 25, 2013
by
rvidyagovindarajan_1
1
answer
If $(1+i)(1+2i)(1+3i).....(1+ni)=x+iy$, then $2.5.10.....(1+n^2)$ = ?
jeemain
math
class11
ch5
complex-numbers-and-quadratic-equations
algebra-of-complex-numbers
easy
asked
Jul 25, 2013
by
rvidyagovindarajan_1
1
answer
The number of solutions to the equation $|x|^2+3|x|+2=0$ is
jeemain
math
class11
ch5
complex-numbers-and-quadratic-equations
quadratic-equations
easy
asked
Jul 24, 2013
by
rvidyagovindarajan_1
1
answer
If $ix^2-x+12i=0$ then $x$ = ?
jeemain
math
class11
ch5
complex-numbers-and-quadratic-equations
quadratic-equations
easy
asked
Jul 24, 2013
by
rvidyagovindarajan_1
1
answer
The value of $\large\frac{1}{i}-\frac{1}{i^2}+\frac{1}{i^3}-\frac{1}{i^4}$ = ?
jeemain
math
class11
ch5
complex-numbers-and-quadratic-equations
modulus-and-conjugate-of-a-complex-number
easy
asked
Jul 24, 2013
by
rvidyagovindarajan_1
1
answer
The value of $\large\frac{1-i}{1+i}$ = ?
jeemain
math
class11
ch5
complex-numbers-and-quadratic-equations
modulus-and-conjugate-of-a-complex-number
easy
asked
Jul 24, 2013
by
rvidyagovindarajan_1
1
answer
If $z=2-3i$ then the value of $z^2-4z+14$ = ?
jeemain
math
class11
ch5
complex-numbers-and-quadratic-equations
algebra-of-complex-numbers
easy
asked
Jul 24, 2013
by
rvidyagovindarajan_1
1
answer
If $-3+ix^2y$ and $x^2+y+4i$ are conjugate of each other then $(x,y)$= ?
jeemain
math
class11
ch5
complex-numbers-and-quadratic-equations
modulus-and-conjugate-of-a-complex-number
easy
asked
Jul 23, 2013
by
rvidyagovindarajan_1
1
answer
If $z\:\:and\:\:w$ are two non zero complex numbers such that $|zw|=1$ and $Arg(z)-Arg(w)=\large\frac{\pi}{2},$ then $\overline z w$ = ?
jeemain
math
class11
ch5
complex-numbers-and-quadratic-equations
argand-plane-and-polar-representation
easy
asked
Jul 23, 2013
by
rvidyagovindarajan_1
1
answer
If $2-i$ is a root of the eqn., $ax^2+12x+b$, where $a$ and $b$ are real then the value of $ab$ = ?
jeemain
math
class11
ch2
complex-numbers-and-quadratic-equations
modulus-and-conjugate-of-a-complex-number
easy
asked
Jul 22, 2013
by
rvidyagovindarajan_1
1
answer
A particle of mass 2 kg moves on a horizontal plane under the action of force $F=(2 \hat i+2 \hat j)N$. The body is displaced from (0,0) to (1m,1m) If the initial speed of the particle is 2m/s find its final speed
jeemain
physics
class11
unit4
work-power-energy
q50
easy
asked
Jul 22, 2013
by
meena.p
1
answer
Potential energy of certain spring when stretched through a distance of $x=10 J$. The amount of work that must be done on this spring to stretch it through an additional distance $x$ will be
jeemain
physics
class11
unit4
work-power-energy
q49
easy
asked
Jul 22, 2013
by
meena.p
1
answer
An engine develops 10 KW of power How much time will it take to lift mass of 200 kg to a height of 40 m
jeemain
physics
class11
unit4
work-power-energy
q48
easy
asked
Jul 22, 2013
by
meena.p
1
answer
When kinetic energy of body is increased by 300 % momentum of body is increased by
jeemain
physics
class11
unit4
work-power-energy
q45
easy
asked
Jul 22, 2013
by
meena.p
1
answer
If the equation $(a+1)x^2-(a+2)x+(a+3)=0$ has roots of equal magnitude and opposite signs, then the roots are
jeemain
math
class11
ch5
complex-numbers-and-quadratic-equations
quadratic-equations
easy
asked
Jul 21, 2013
by
rvidyagovindarajan_1
1
answer
$|z+\overline z|=|z-\overline z|$ represents ?
jeemain
math
class11
ch5
complex-numbers-and-quadratic-equations
representation-of-complex-numbers
easy
asked
Jul 21, 2013
by
rvidyagovindarajan_1
1
answer
One of the values of $(i)^{\large\frac{1}{3}}$ is
jeemain
math
class11
ch5
complex-numbers-and-quadratic-equations
modulus-and-conjugate-of-a-complex-number
easy
asked
Jul 21, 2013
by
rvidyagovindarajan_1
1
answer
The value of $\sqrt i+\sqrt{-i}$ = ?
jeemain
math
class11
ch5
complex-numbers-and-quadratic-equations
modulus-and-conjugate-of-a-complex-number
easy
asked
Jul 21, 2013
by
rvidyagovindarajan_1
1
answer
Are the points (2, 3, 4), (-1, -2, 1), (5, 8, 7) collinear?
class12
cbse
easy
sec-a
ch11
additionalproblem
math
asked
Jul 20, 2013
by
balaji.thirumalai
1
answer
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