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if α , β are roots of x2-px+q=0 ,then products of the roots ofquadratic equation whose roots are α2-β2 and α3-β3 is p(p2-q) show ...

Two parabola's y2=4a(x-λ1) and x2=4a(y-λ2) always touch each other, λ1 and λ2 being variable parameters. Then their points of contact lie on a _ 1) straight line 2) parabola c) circle d) hyperbola ...

anniline doesnot undergoes friedel crafts alkylation and acylation . Can anybody give me the reason ...

consider 3 reactions hydrolysis of EtSCH2CH2Cl , EtNCH2CH2Cl , EtOCH2CH2Cl Arrange them in increasing order oh reactivity, where N , O , S act as neighbouring group...... ...

*Image* calculate d current thru d diode .... source voltage is 9V and source resitance is 1kohms ...

arrange the following with respect to their reactivity towards Sn1 (CH3)3C-I & (Ph)2-CHBr ...

∫sin- x - cos- x / sin- x + cos- x dx = ? ...

∫F(x)sinxcosx.dx = F(x)/ 2(b2 - a2),then F(x) =? 1) 1/a2sin2x + b2sin2x 2) 1/a2sin2x - b2cos2x 3)1/a2cos2x + b2sin2x 4) 1/a2cos2x - b2sin2x ...

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why amines salts are insoluble in the organic solvents ...

Prove that the circles x2+y2+2ux+2vy=0 and x2+y2+2u1x+2v1y=0 touch each otehre if u1v=uv1 ...

*Image* (where {.} denotes fractional part and [.] denotes greatest integer function ) is equal to _________ ...

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Name a few bio-degradable polymers. Give 2 uses of each of these polymers: Natural rubber, cellulose, nylon, teflon and PVC. ...

Find the Unit digit of 127141 + 141127 + 127.141 + (127.141)127.141 *Another "Backlog" Question of the day! ...

If a and b are chosen randomly from the set consisting of numbers 1,2,3,4,5,6 with replacement,find the probablity that lim (ax -bx+2/x)/2 =6 x--->0 ...

A vertical pole consists of two portions,the lower being 1/3rd of the whole.If the upper portion subtends an angle arctan(1/2) at a point in a horizontal plane through the foot of the plane and distance 40ft from it,then the ...

The equation of bisector of internal angleA of the triangle ABC The equation of whose sides are AB:x+y=1 BC:7X-Y=15AND AC:x-y=1 ...

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*Image* P and Q are two coaxial conducting loops separated by some distance. Wen te switch S is closed, a clockwise curent i1 flows in P and an indused current I1 flows in Q. The switch remains closed for a long time. Wen S i ...

Application Number ******* has been received at JEE Office. It is incomplete or deficient in the following respect is Nil What does the darkened sentence mean???Is there any problem with the application form?& ...

Ohm's law states that the current in a wire is directly proportional to the potential difference across it's ends, right? So why do we write V prop'l to I when the law states I prop'l to V ? ...

meri +1 & +2 ki chemistry bahut weak hai. so please recomend me buks for theory of physical and organic chemistry. and also i don't like foreign buks like moreson. plzzzzzzzzzzzzzzz. advice.................. ...

if eqn 2hxy +2gx+2fy+c=0 represents 2 st. lines show that they form a rectangle of area mod(fg)/h2 with axes ...

4,5,8,17,44, how to calculate next no. in series how to crack these question and how to crack matrix question i want to know fastest method not time consuming method ...

prove that lines a2x2+2h(a+b)xy+b2y2=0re equally inclined to the lines ax2+2hxy+by2=0 ...

suppose f(x)=x3+ax2+bx+c a,b,c are chosen respectively by throwing die three times.Find probability that f(x) is inc. function ans=5/12 ...

The system is released from rest from the position show in thediagram If A and B have mass m and M respectively and all surfaces are smooth , then the normal reaction between A and B is assume that string and pulley are massl ...

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A block of mass m is kept on a rough horizontal floor having coefficient of friction μ A constant horizontal force F is applied on the block towards right due to which it is moving with a constant acceleration a.Free body di ...