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The eqn x2+bx+c = 0 has distinct roots. It 2 is subtracted from each root, the results are reciprocal of the original roots. Then what is the value of (b2+c2+bc) ?? ...

A semicircular ring of mass m is kept in x-y plane with centre at origin.It is charged in such a way such that charge/unit length varies as λ=λocosθ . Find accelration of ring when electric field E=Eoxi+Eoj is switched on. ...

What is the value of (1+cos π/9 )(1+cos 3π/9 )(1+cos 5π/9 )(1+cos 7π/9 ) ...

question by me...:P draw the graph of y=1/1+x2 very simple graph...:P ...

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1.Calculate the vapor pressure of 0.1M aqueous solution of non-electrolytes at 75°C. 2. Calculate the molality and molarity of a solution made by mixing equal volumes of 30% by weight of sulphuric acid(density = 1.2 gm/ml)an ...

Q→ A sample of H-atoms containing all atoms in some excited state is irradiated with light of wavelenth ∂ and atoms get reexcited to furthur higher orbit. on removing the light source , atoms de-excite to ground state wit ...

\lim_{n\rightarrow \propto } \frac{\left[1^{3}x \right]+\frac{1}{2}\left[2^{3}x \right]+\frac{1}{3}\left[3^{3}x \right]+......+\frac{1}{n}\left[n^{3}x \right]}{1^{2}+2^{2}+3^{2}+...+n^{2}} , where [.] denotes greatest integer ...

Q1] If ax2 -bx + 1 = 0 have 2 real roots (a,b are real) , then the greatest value of 2a-b is ? a] -1/2 (b] 0 (c] 1/2 (d] none Q2] Let the equation of a curve , x = a(θ+sinθ) ; y=a(1 - cosθ) If θ changes at a const rate k ...

Q1 solve for x: [lnex]( x2011 + 2011x - 2011) - [lne(1/x)]2011 = 0 ...

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The specific rotation of a pure enantiomer is +12 degrees . It is isolated frm a reaction with 20% racemisation and 80%retention . what would be its observed angle of rotation?? plzz tell also how to solve problems like these ...

1) a chess board is labelled from nos 1 - 64 a term is defined as the score of labelling score of a particular labelling is the largest difference b/w 2 labels in squares sharing a common side or vertex. what is smallest poss ...

A car travelling at 60 Km/h overtake another car travelling at 42Km/h .Assuming each car to be 5.0m long,find the tame taken during the overtake and the total road distance used for the overtake ...

Σ cot-12n2 n→∞ ...

a stunt man jumps his car over a crater (neglect air resistance ) then during the whole flight the driver experiences weightlessness .Why???? ...

solve for x 1) (x2+2)2 + 8x2 = 6x (x2+2) ...

If a circle of radius r is inscribed in a n-sided regular polygon,and the perimeter is 2p,find the polygon's area. ...

there is a beautiful equation eiπ+1=0 it has e,i,π,1,0 except i all are constants my question is simple is 'i' a constant number?? please mereko gali mat dena if you feel the question is sort of idiotic...:P...request by me ...

for the eq 3x2 +px +3 = 0 , p>0 if one of the roots is the square of the other then p is equal to ...

Find the no. of values of x belongs to R for which 64^(1/x) + 48^(1/x) = 80^(1/x) plzz give the full soln... ...

(1.2.4+2.4.8+3.8.12...to n terms/1.3.9+2.6.18+3.12.27+.....to n terms) plz...i need it urgently that's why i am posting here,otherwise i would post it in 9-10.sry. ...

find the no. of factors ( excluding 1 and the expression itself ) of the product of a^7 b^4 c^3 d e f where a b c d e f r all prime nos..?? plzzz provide the full soln.... ...

Solve:(x+4)(x+7)(x+8)(x+11)+20=0 ...

Let R be the set of real numbers. Suppose f : R → R be a continuous and periodic function with period T > 0. Prove that for every a < b, \lim_{n\to \infty} \int_a^b f(nx)\ \mathrm dx = \dfrac{b-a}{T}\int_0^T f(x)\ \ma ...

Find the length of the chord of the ellipse x2/25 + y2/16 = 1 , whose middle point is ( 1/2 , 2/5 ) . ...

A triangle,a circle,and a square are isoperimetrical.Arrange the areas in increasing way. Please urgent. ...

Can i do MTECH in other subjects than i did BTECH? I mean if i do BTECH in Civil..Can i do MTECH in Mechanical/CS/Electrical?? I know its silly to ask this..but still i was not sure.. ...

we have subjects -philosophy,sociology,economics,literature,linguistics,physchology ,or arts.............. we have to choose any one from these .. plz help which one to choose ??? so that i can get good marks with little work ...