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a3+b3+c3+3abc≥ab(a+b)+bc(b+c)+ca(a+c).....a,b.c +ve reals ...
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*Image* ...
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Find: limn→∞Σ 1 to n: r/(4r2+1) ...
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<span class="postbody"><center><embed src="http://www.magicwidgets.com/widgets/mw-cd-countdown/show.swf?clickURL=http://www.magicwidgets.com/&clickLABEL=Flash-Toys&flashLABEL=MagicWidgets&skin=http://www.magicw ...
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<span class="postbody"><center><embed src="http://www.magicwidgets.com/widgets/mw-cd-countdown/show.swf?clickURL=http://www.magicwidgets.com/&clickLABEL=Flash-Toys&flashLABEL=MagicWidgets&skin=http://www.magicw ...
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\textrm{if the equation \: \: }x^4 + px^3 +qx^2 + rx+ 5= 0 \textrm{\: \: has four positive real roots find minimum value of pr } 2) without use of CALCULUS prove that \textrm{if the equation \: \: } x^3 +ax+ b= 0 \textrm{\: \ ...
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1) \lim_{x\rightarrow 0} (\frac{1}{sinx}-\frac{1}{x}) 2) \lim_{n\rightarrow \propto } \frac{4^{n}+3^{n}}{4^{n}-3^{n}} 3) \lim_{x\rightarrow 0} \frac{\tan^{-1}x-\sin^{-1} x }{x^{3}} ,, LH not working ...
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prove that cos 180°/15. cos 360°/15. cos 540°/15.............to 7 factors=1/2^7 ...
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*Image* *Image* ...
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sorry ...
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sorry ...
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sorry ...
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\texttt{let a,b,c be positive reals} \\ \texttt{if} \ a+b+c=3 \\ \texttt{then prove that:}\\ \frac{a}{4b^{2}+1}+\frac{b}{4c^{2}+1}+\frac{c}{4a^{2}+1}\geq\frac{3}{5} ...
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*Image* the two plates of a capacitor with capacitance C is given q1 and q2 charge,,the system is as shown where R is resistance..the key is closed at t=0 find charges on the plates after time t. ...
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Two bodies of masses 10kg and 20kg are plaeced at a distance 1.0 m apart and released.Assuming that only mutual gravitational forces are acting,find the speeds of the particles when the separation reduces to 0.5 m. ...
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Which one is greater 1234230/2468462 or 1234231/2468464 ? ...
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Which one is greater 1234230/2468462 or 1234231/2468464 ? ...
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a man is left in a field where a point O is placed.there r two flags named A,B .he is told that if he moves from O to A and the same distance again at an angle 90 from A he reaches A'. and similarly if moves from O to B and t ...
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a man is left in a field where a point O is placed.there r two flags named A,B .he is told that if he moves from O to A and the same distance again at an angle 90 from A he reaches A'. and similarly if moves from O to B and t ...
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All those who have passed out from class XII this year that is 2009 and are going to give IIT next year please post ur name.... May be we can keep in touch...,cuz it's v depressing to be alone and think ur the only one who is ...
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although m not the right person to give problem for practice but still m posting some ques for practice.....i jus started this cozz i thinkj the threads r still in the joy nd shock of jee results:P:D.. 1)In a book with page n ...
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according to me 1.UPSC 2.IITJEE 3.CAT 4.Chartened Accoutnacy baki koi xam is list ke aas pass bhi nahi aa sakta ...
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*Image* obviously H+ added & heated ...
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*Image* obviously H+ added & heated ...
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*Image* obviously H+ added & heated ...
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*Image* obviously H+ added & heated ...
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*Image* obviously H+ added & heated ...
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*Image* obviously H+ added & heated ...
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*Image* obviously H+ added & heated ...
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*Image* obviously H+ added & heated ...
