Recently Active Questions

a difficult one seems to be!!!! in a certain experiment to measure the ratio of charge & mass of elementary particles, a surprising result was obtained in which two particlesmoved in such a way that distance btw them remains ...

x,y,z are positive real numbers satisfying x^3y+3 \le 4z y^3z+3 \le 4x z^3x+3 \le 4y Find (x,y,z) ...

How to find center of mass of a cone ...

Q1 which compound is most easily deformylated? a) α-keto ester b) α-keto acid c) 1,1 dicarboxylic acid d) β-keto ester Q2 which is the most effective solvent for methyl iodide with azide ion (N3-)? a) DMF b) DMSO c) -OH d) ...

what exactly is constraint equation? ...

a spherical balloon with a diameter of 21 cm is to be filled up with hydrogen at STP from a cylinder containg the gas at 20 atm and at 27°C. If the cylinder can hold 2.82 L of water,calculate the number of balloons that can ...

Which of the following orbitals is not symmetrical about Z-axis? ...

There are n numbered seats around a round table.In how many ways can m(<n)persons sit around the table ? ...

how much faraday needed to electrolyse NO2 ...

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if /z/ = max{ /z-1/ , /z+1/ } then, 1./z+conjugatez/=1\2 2.z+ conj. z =1 3./z+conj.z /=1 4.none i got the answer to be b and c solution.... |z| = max{ /z-1/ , /z+1/ } or x2 +y2=max{(x-1)2 + y2 , (x+1)2+y2} so seeking the grap ...

After elections, each senator in the CaliMass Congress has an absolute rating (the number of voters for example - anyway a positive number). Each of these senators enters in a committee in which he obtains a relative rating. ...

Ques1) Solve ∫ √ (x-3 ) { Sin -1(ln x) + cos -1 (ln x) } dx (a) (x-3) 3/2 + c (b) 0 (c) does not exists (d)none of these Ques2) Show that , if n is an odd positive integer, then ∫ |x n | dx equals to (|x n| x ) / (n+1) ...

find locus of center of circle which touches (y-1)2+x2=1 externally and also touches X axis. if u're getting x2=4y and x=0,think again!!! ...

If a, b, c belongs to R satisfy 7a/3 + 3b/2 + c = 0, then atleast one root of the equation ax2+bx+c = 0 lies between a. (3, 4) b. (0,2) c. (3/2, 2) d. (1, 3/2) ...

Which of the following do exist? ...

Q Find the intersections of {y}=cos|x| and [y]=sin2x from (0,∩) ...

{2} Find the coords of the Orthocentre of a triangle of sides x + y = 1 2x + 3y = 6 4x - y = 4 WITHOUT FINDING THE COORDS OF ITS VERTICES!!! {6}A line is such that its segment b/w the lines 5x - y - 4=0 & 3x + 4y - 4=0 is bis ...

Which is better to form epoxide, Perchlorobezoic acid or hydrogen peroxide? ...

f(x) is a continuous function, which is twice differentiable - function is from Reals to Reals. Given |f(x)|\le 1 for all real x & |f''(x)|\le 1 , again for all real x. Prove |f'(x)| <2 for all real x. ...

Find x+y if real numbers x,y satisfy x3-3x2+5x-17=0 and y3-3y2+9y+11=0 ...

Guys plz send ur cooments abt osama.... he was very inspiring n gave me sum good tipz...:( :) ...

If f(x) and g(x) are 2 polynomials such that polynomial h(x)=xf(x^3)+x^2g(x^6) is divisble by x^2+x+1 then find relation between f(1) and g(1) i got the answer f(1)=-g(1) but answer given is f(1)=±g(1) plz help ...

Please anyone tell whether Hermitian and unitary matrix are in JEE syllabus or not??? ...

Two pitch balls are charged by rubbing against each other. They are suspended from a horizontal rod through two strings of length 20cm each, the separation b/w the suspension point being 5cm. In equilibrium, the separation b/ ...

If the imaginary part of expression z-1/eiθ + eiθ/z-1 is zero,then find locus of z i tried by taking z-1/eiθ =t ..another complex no.. but in vain.. plz suggest a better method ...

Prove that for a cubic function tangent lines at two distinct points will never coincide ...