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Suppose a astronaut has sailed out of his spaceship and by mistake the cable wire conneting him with the spaceship has somehow been cut loose.Now luckily the astronaut had a ball in his hand.Devise a way so that he may return ...

the number of terms of expansion with reational co-efficients in the expansion of ( 5 + 3 +z)6 is a) 7 b) 6 c)8 d)9 ...

the least value of r for which the two curves argz=-∩/6 and |z+2 3 i|=r have atl;east one point in common is a) 3 b)1/ 3 c)3 d)2 ...

I am in XII(just passed XI). I wasted whole year and got less marks both in boards and JEE(coaching inst tests). I had 2 months holidays now... I want to complete physical chem and mechanics thoroughly...I am starting from to ...

Q. what will be the condition if both roots are negative ? answer given 1. D> 0 2. a f (0) >0 3. -b/2a >0............................. is the 3rd point corect ? i feel it wil be -b/2a < 0.. pls tel me the answer n ...

if x,y,z are positive then minimum value of xlog2y-log3z+2ylog3z-logx+3zlogx-log2y a)1 b)12 c)3 d)6 ...

XII guys n gals in targetiit ...m startin dis thread 2 wish all XII ppl the best f luck 4 ur boards..whoever wishes 2 wish ....can join dis thread.....cheers................:) ...

if A and B are the roots of px2+qx+r=0 where 1<A<B then lim x→n |px2+qx+r|/px2+qx+r =1 when a) p<0 and A<n<B b)p>0 and n>1 c)p<0 and n>1 d)|p|/p=1 and n>A ...

*Image* Q. A thin spherical shell having uniform density is cut in two parts by a plane and kept separated as shown in fig. The point A is the centre of the plane section of the first part and B is the centre of the plane sec ...

if ( 3 +i)n=2n then n is a) an integral multiple of 12 b)an integral multiple of 5 c)an integral multiple of 8 d)none ...

1)Find the smallest natural number which leaves remainder 4,6,10,1 when divided by 5,7,11 and 13 respectively. 2) xy+yz+zx=1 then prove that (1+x^2)(1+y^2)(1+z^2)=(x+y)^2(y+z)^2(z+x)^2 ...

55> ORIGIN is an interior point of an ellipse wose foci correspond to the complex numbers z1 and z2 . Then the eccentricity of the ellipse is : *Image* 218> A die is thrown as long as necessary for one ace or six to tur ...

the coeff of x14 in the product (1-x)(1-2x)(1-22x)......(1-215x) is equal to, given that 1 + \frac{1}{2} + \frac{1}{2^{2}} + \frac{1}{2^{3}}.... + \frac{1}{2^{15}}= a and 1 + \frac{1}{2^{2}} + \frac{1}{2^{4}}.... + \frac{1}{2 ...

do u have something cool then post here 1.) -Go to "www.google.com" -type in "French Military Victories" and press "I'm feeling lucky" -Look at the question "Did you mean:...". 2.) -Type in adress bar "www.google.com/unclesam ...

exercise 13.4 q3) let x represent difference b/w no. of heads and no. of tails obtained when a coin is tossed 6 times.what are possible values of x? q12 ) 2 numbers are selceted at random from first 6 positive integers withou ...

if a1,a2,a3..............an ar n postive numbers in arthmetic progression with common difference d≠0 and sn= \Sigma r=1 to n ar, then a) sn>n x nth root of a1a2an b)sn>n a1 an c)sn>n 2a1(n-1)d d)sn>2[ a1a2 + a3a ...

cos-1(x2-1 / x2+1) + 1/2 * tan-1(2x/1-x2) = 2Ï€/3. Solve for x ...

Form the differential equation satisfied by [1 – x2]1/2 + [1 – y2]1/2 = a.(x – y), a is an arbitrary constant. ...

find the pH of 10-8 N HCl solution ...

∫1/(x2+1)(x4+1) ...

A candidate is required to answer 7 out of 12 questions which are divided into two parts A and B , each containing 6 questions . he is not permited to answer more than 5 questions from either part , The number of ways , he ca ...

:CCl2 is less nucleophilic than :CH2 Is the statement correct ...

if 1>=a>=b>=c>=0 & λ is a real root of the equation x3+ax2+bx+c =0 then max. value of modulus λ is ? a)1 b)1.5 c)2 d)0.5 ...

∫(sin8x - cos8x)/(1-2sin2xcos2x) ...

Two numbers are selected at random (without replacement) from the first six positive integers. Let X denote the larger of the two numbers obtained. Find E(X). ...

∫1/(x2(x4+1)) ...

Assertion: A body can have acceleration even if its velocity is Zero at a given instant of time. Reason: A body is momentarily at rest when it reverses its direction of motion. THE CHOICES ARE SAME AS THAT IN THE JEE PAPERS! ...

probablity misc exercise q11..... in a game a man wins a rupee for a six and loses a rupee for any other number when a fair die is thrown.a man decides to throw a die thrice but to quit as soon as he gets a six.Find expected ...

very small doubt from ncert its from misc exercis last question Q number of binary operations on set {a,b} is?????? ...

Show that the semi vertical angle of a right circular cone of given surface area and maximimum volume is sin-1(1/3) Pls give the shortest method..It is there in RD, but i think it is tooooooo long...I need EXPERT'S Help... ...