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*Image* there is a cylindrical container of depth h. Its bottom is silvered. A point object is fixed at the mouth of the container. Initially the container is filled with water( mu=4/3) . Now the orifice at the bottom is open ...

find all the numbered pairs (x,y) that satisfy the equation tan^4x+tan^4y+2cot^2x.cot^2y=3+sin^2(x+y) ...

*Image* 2. *Image* 3. *Image* integrate w.r.t . alpha( α) thnks gov bhai FAR PRAACTIZE ...

why d5 complexes have pale colors in comparision to the other d1.d2, etc complexes? ...

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*Image* Consider a rectangular tank of size (l X b) filled with a liquid of density roh to a height h as shown in the figure. Then draw the free body diagram of liquid (showing only the vertical forces) and also draw the forc ...

plz do(or give me some hints as to how to proceed) *Image* Ans is given as 3) ...

The probability that out of 10 children, all born in February 2005, at least two have the same birthday is : ........... ans---------> don't know help me. full soln . please ...

Why f- block elements' colour are constant in their respective compounds, whereas d- block elements' colour in their respective compound varies with their changing oxidation states? ...

1. ∫1/sin2x+cos2xdx = a) -2cot2x+c b) tanx-cotx+c c) 9+(sec2x)/2 d) 3-tan2x/2 e) (3-sec2x)/2 f) (tan2x/2)-5 2. If vectors a+b=vector c then vector a x b = a) c x a b) a x c c) b x c d) c x b 3. If the direction ratio of a l ...

let f(x)=\int_{0}^{1}{\left|t-x \right|t.dt} for all real xfind the function f(x) and its minimum value ...

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Limit \lim_{n\to\infty}\frac{(n+1)^{9}+(n+2)^{9}+\cdots+(n+n)^{9}}{1^{9}+2^{9}+\cdots+n^{9}} =2^{k}-1 Find K ...

\int_{-\pi /2}^{\pi /2}{log\left[\frac{ax^{2}+bx+c}{ax^{2}-bx+c} (a+b)\left|sinx \right|\right]}dx ans----------> \pi ln\left(\frac{a+b}{2} \right) ...

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1.plz can anyone tell me how to find plane ,centre of symmetry with examples.......... ...

1...do chirality and optically activity mean the same ??????? ...

*Image* for PRACTICE ...

\int_{-\pi /2}^{\pi /2}{\frac{cosx}{1+e^{x}}}dx for practice.please post the solution too. ans------->1 ...

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1) f'(x) = f(x) - ln x + 1/x 2) ( 1 + x√(x2 + y2))dx + ( -1 + √(x2 + y2) )y dy = 0 3) 2x3y dy +( 1 - y2)(x2y2 + y2 -1) dx = 0 [find the soln. of the above differential eqn.] [ PLEAZ DON'T ASK ME ANS. BECOZ I DON'T HAVE TH ...

i ll give a sum and post its solution!! explain to me y is it the way it is!! *Image* *Image* *Image* questions...can all summations be treated like this?? why for Tn n->0 but Sn n->∞ please help urgent IITJEE 2008 QU ...

\int_{0}^{3\alpha }{cosec(x-\alpha )cosec(x-2\alpha )}dx ans-------> 2cosec\alpha log(1/2 sec\alpha ) ...

if n>1 evaluate : \int_{0}^{\infty }{\frac{dx}{(x+\sqrt{1+x^{2}})^{n}}} ans -----> n/n2 - 1 ...

Hydrolysis of 1 mole of peroxodisulfuric acid gives ?? ans given is **2 moles of peroxomonosulfuric acid** but shouldnt it be 2 moles sulfuric acid ???? ...

WHich of these doesnt dissolve in hot dil HNO3 a)HgS b)PbS c)CuS d)CdS ...

If I is intensty of absorbe dlight and C is concentration of AB for photochemical process AB +hv --->AB*,rate of formation fo AB* is directly proportional to ?? a)C b)I c)I^2 d)C.I ALso plz expalin the concept behind it ...

From a chess board containing 54 squares of unit length each colored black and white ,rectangle of any size is chosen Q1 If selected rectagle is square the n probablity that in selected square no. of black squares isnt equal ...

Zinc copper couple cna be used as a reducing agent is obtained by a)mixing zinc dust with copper gauze b)zinc coated with copper c)copper coated with zinc d)zinc and copper wires welded together Plz tell me the concept behind ...

find all values of " a " for which the inequality \frac{1}{\sqrt{a}}\int_{1}^{a}\left( {\frac{3\sqrt{x}}{2}+1-\frac{1}{\sqrt{x}}\right)}<4 is satisfied. ans-------->(0,4) ...