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Let x,y,z be positive real numbers, satisfying the following inequality : (x+y+z)(\frac{1}{x}+ \frac{1}{y}+ \frac{1}{z}) < 10 Prove that x,y,z form sides of a triangle. If you know this , please don't post within a day. :) ...

Points x and y lie on the side QR and RS of a parallelogram PQRS such that QX =2XR and RY=3YS.Thus the value of u such that the diagonal PR meets line XY at Z and PZ=u PR is ?Characters in bold face denote vectors. ...

*Image* Help me with the mechanism.. Please ask your teachers if any.. or give me a link/article online. ...

What type of Questions come in AIEEE and WBJEE from Na More Specifically NaOH Na2O Na - Compounds ??? ...

9.93/238.3 =0.04167 this is also from a fiijee solution..... how are they doing it so correctly and upto 5 decimal places? are they doing it by actual division??? Or are there some tricks to be used in doing division??? pls h ...

1) \lim_{x\rightarrow \frac{\pi }{2}} sec^{-1}(sin x) 2) \lim_{x\rightarrow 0}cos\frac{1}{x} 3) \lim_{x\rightarrow 0}(1+sinx)^{1/x^{2}} 4) Let f( x+y/2 ) = f(x)+f(y)/2 for all real x and y.If f'(0) = -1 and f(0) = 1,find f(2) ...

G.C.D of (m,n)=1 1) x ≡3 (mod n) x ≡2 (mod m) Find x. Got it from a frnd. ...

has anyone got the results yet? ...

There are 2 containers having equal volume,temperature and total pressure. 1 contains 5 moles of N2. the other one contains 3 moles of O2 and 2 moles of He.For the same time-interval the gases are diffused outside. Find the r ...

1)A cell Ag|Ag+||Cu2+|Cu initially contains 1M Ag+ and 1M Cu2+ ions. Calculate the change in cell potential after passage of 9.65A of current for 1 hour. 2)Calculate emf of the following cell at 25°C Pt,H2(3 atm)|HCl|H2(15 a ...

1.pls explain these a)[-2x/pi]+1/2 = -([2x/pi]+1/2) b)-3≤|[x]|≤2 implies -2≤x<3 2. What is the formula to find number surjections from A to B? 3.If f"(x) = -f(x) and g(x) = f'(x) and F(x) = (f(x/2))2+(g(x/2))2 and gi ...

what is the value of sincube.cos+coscube.sin will u please explain me with the help of a solution ...

all papers at one click go to http://helpentrance.in/ ...

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guys can any1 tell me wat will happen when nascent oxygen reacts with anatoxin the structure of anatoxin is given in wikipedia and will there be any reduction of toxicity when the oxygen is removed ??? *Image* thanks much i v ...

I got this step from a FIITJEE solution..... antilog(15.593)=3.9*1015 how to do that???? (no data was not given in the question!) ...

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1+(2+3)+(3+4+5)+,,,,,,,,,, ...

The no of real roots of 2x = x2+1 is: ...

Who can do this in min 4 different ways \lim_{x\rightarrow 0}\frac{tan^{-1}x-sin^{-1}x}{sin^{3}x} ...

In Lens Makers Formula Should we substitute the value of u (object distance) & v (Image distance) with proper Sign or just the value Lens Makers Formula : 1/v - 1/u = ( \mu_{2} / \mu_{1} )( 1/R1 - 1/R2 ) ...

*Image* Consider a mass ' m ' rotating about the given axis with angular velocity ' ω '. Find the acceleration and Pseudo Force of the block as seen from the MID POINT of the string. Assume the length of string as ' L '. ...

*Image* show the product with mechanism please. ...

are you all giving AIEEE exam online or offline? is their any harm in giving the exam online? ...

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Find the remainder when 2202 is divided by 101 . ...

*Image* Find the mistake.... ...

Is J.D.Lee appropriate for Preparing for IIT? Can anyone suggest a better name for Just Inorganic Chemistry? ...

Can anyone explain to me what is ortho effect? ...