Recently Active Questions

The equation ax3 +bx2 +cx+d = 0 is known to have three distinct real roots. How many real roots are there of the equation 4(ax3 + bx2+ cx + d)(3ax + b) = (3ax2 + 2bx + c)2? ...

A Cassegrain telescope uses two mirrors 20 mm apart. radius of curvature of the mirrors 220mm and 140 mm.when object at infinity..final image will be formed at...??? ...

IN HOW MANY WAYS CAN 10 STUDENTS BE DIVIDED INTO THREE TEAMS SO THAT ONE TEAM CONTAINS 4 STUDENTS AND THE OTHER TWO TEAMS CONTAIN 3 STUDENTS EACH..... (I FORGOT THE OPTIONS, SORRY) ...

if z1=2-i,z1=1+i find magnitude of z1+z2+1/z1-z2+1 ...

*Image* nw d q says wich of d curve is adiabatic options AB and BC AB and CD AD and BC BC and CD ...

In how many ways 12 different fruits can be distributed among 3 boys so each receives atleast one? just for confirmation.... ...

a ball falls frm 20 m height on floor n rebounds to 5m time of contact is .02sec find acc during iimpact ...

let N be positive integer with 1998 decimal digits all of them 1 such that n=1111.......11 Find the thousandth digit after decimall point of N ...

pllz help it's urgent im losing cofidence for jee coz of this silly questiopn pppllz hlp the pka's of H2CO3 r 6.4 &10.3.the pka of HOBr is 8.7 if equimolar amount of the above two r dissolved in water what will be the predomi ...

Do all teh four C-H bonds in methans have equal bond energy? Coz ans given is dat none of them hav the same energy! But i think all of them do hav the same enrgy... If not pls temme why.. ...

Q If α and β are the roots of the equation atanθ +b secθ=c find the value of tan(α+β) and cos(α+β) ...

Pyrrole and Pyridine .... a> both non aromatic b> both aromatic c> Pyrrole non aromatic and Pyridine aromatic d> Pyrrole aromatic and Pyridine non aromatic ...

What is the difference between unimolecular and 1st order reaction??... ...

diff b/w schiffs base and schiffs reagent ...

wen germanium is doped 1 part in a million wid indium itz ocnductivity increase by a factor of 10 10^3 10^6 10^5 gimme d formula or wat so stuff u noe n d answer ...

LEIBIG's METHOD kya hai?? pl. xplain!!! ...

Twenty-one girls and twenty-one boys took part in a mathematics competition. It turned out that (i) each contestant solved at most six problems, and (ii) for each pair of a girl and a boy, there was at least one problem that ...

Q Prove the following x/y+z +y/x+z +z/x+y≥3/2 x,y,z are all >0 ...

Q Prove that the blue part is equal to the yellow part It is a square and the triangles have the intersection at the mid point of the square *Image* ...

What is the role of conc. H2SO4 in the nitration of benzene ?? ...

What will be the electrostatics force between two steel spheres each weighing 1 kg and separated by 1 m if each one of them has one percent more electron than protons. ...

Let and B be different n x n matrices with real entries. I f A3=B3 and A2B=B2A , can 2+B2 be invertible? ...

Prove that the surface area of the sphere is indeed what we read in our childhood as 4Ï€R2 ...

Find all positive integral solutions (a,b,c) to the equation (a+1)(b+1)(c+1)=2(abc + 1) ...

Find all positive integral solutions (a,b,c) to the equation (a+1)(b+1)(c+1)=2(abc + 1) ...

WHat is Artificial transmulation in nuclear chem?? ...

F(x)=f(x)+f(1/x),whr f(x)=∫1x logt dt/1+t Then F(e) equals? ...

When a bubble rises what happens to the Potential energy ?? I thought abt it in 2 ways & got 2 logical answers but only 1 is right..pls help ...

Let a and b be two positive integers such that for any positive integer n, an + n divides bn + n. Prove that a = b. ...

how to determine the n factor of a compound please help ...