Recently Active Questions

If f(x)= x + 1/x , find fo(fof). Answer: (x2 + 1)4 + 3x2 (x2 + 1)2 + x4 /(x2 + 1)(x.x.x.x.x + 3x3 + x) I know the method but could you just show me the manipulation please? ...

The most stable conformation of n-butane is ...

The increase in the value of molar conductivity of acetic acid with dilution is due to ...

When same quantity of electricity is passed, the electrochemical equivalents of the two metals liberated at the electrodes have the same ratio as that of their ...

A cell reaction Zn(s)+2Ag+(aq)→Zn2+(aq)+2Ag(s) is represented as ...

1)If ar+1= 1/2(ar+1) then prove that cos[ 1-a02 /a1a2....∞]=a0 2)If A+B+C+D=2∩ prove that sinA/2.sinB/2.sinC/2.sinD/2≤1/4 ...

In spite of the spate of unanswered questions, I would like to add one more question to the forum: Find all n such that 2n divides 3n+1 (Hope this question too does not end up as a statistic) edited ...

whyf(x)=1/x has neither absolute maxima nor minima in interval( 0,1) ...

Q. Two spheres of radii R1 and R2 are connected by a wire. What is the equivalent capacitance of this system ...

tell me the graph of min[{x},{-x}] ...

plz explain me how rotation will occur if we rotate a rectangular loop about 1. length 2.,breadth 3. perpendicular to breadth . 4. perpendicular to length 5.perpendicular to plane of loop also of a circular loop abot diameter ...

imo day 2 questions problem 4-- http://www.mathlinks.ro/viewtopic.php?t=289054 problem 5- http://www.mathlinks.ro/viewtopic.php?t=289055 problem 6 -- http://www.mathlinks.ro/viewtopic.php?t=289051 and no INEQUALITIES THIS TIM ...

*Image* Find the equivalent resistance of the following group of resistances between A and B. Each resistance of the circuit is R ...

The periodic functions f(x): R -> R and g(x): R -> R satisfy the condition: lim (f(x)-g(x))=0 for all x ε R Prove that f(x)=g(x) for every real number x try to prove this. trust me it is really a good one. must try ...

the equation e^(x-1)+x-2=0 has how many roots ?????????? ...

*Image* ...

If a mass is ejected from a system moving with a constant velocity ,in a direction opposite to the system's motion then what will be the direction of the thrust force acting on the system and how to decide the direction? ...

1.the point (0,3) is nearest to the curve x^2=2y at 2.in a triangle ABC ANGLE B=90 and a+b=4 .te area of the triangle is the maximum when angle C is ...

Does the set {1;2;...;3000} contain a subset A consisting of 2000 numbers such that x belongs to A implies 2x does not belong to A. ...

Arithmetic progressions Consider the following infinite table : 04, 07, 10, 13, 16, 19, ... 07, 12, 17, 22, 27, 32, ... 10, 17, 24, 31, 38, 45, ... 13, 22, 31, 40, 49, 58, ... 16, 27, 38, 49, 60, 71, ... 19, 32, 45, 58, 71, 8 ...

prove that:- tan(3pi/11)+4sin(2pi/11) = √11 ...

plot the graph y4-x4+xy=0 ...

Find the sum of the the intercepts on the axes of coordinates by any tangent to the curve x + y =2 Plz solve this problem............ ...

A very thin round plate of radius R carrying a uniform surface density x is located in vaccum. At a dist l from the platers centre (along its axis), find the field and potential.... ...

In triangle ABC. angle B=2*angleC Prove that AC<2AB ...

Friends who r going 2 join NITs & ready 2 break all barriers in IIT-JEE 2010 post ur name ,college & branch so that we can know who is joining the same college ...

If 2n+1 and 3n+1 are both squares then prove that (n is a natural number): 1. 5n+3 is not a prime 2. n is divisible by 40 ...

-NH2 gr. shows acidic nature while reacts with reagent-- A. Na B. CS2 C. Br2 + NaOH D. Water ...

how is d wavelength nd d frequency related 2 stoppin potential? xplain ur answer plz ...

The first day of problem-cracking at the 50th International Math Olympiad will be underway in a few hours from now. It is being held at Bremen, Germany (I had stayed there for three months for my IIT project work :D). You can ...