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Let A={1, 2, 3, ..., n} Find the number of functions f : A → A having the property that f(f(x)) = f(x). P.S. Edited a bit. ...

plz post ur answers to integer type ques: value of n in molecualr formula 1.BenAl2Si6O18 2.no of cyclic isomers for C4H6 3.escape velocity on surface of planet 4.incandescent bulbs are designed by keepin in mind that the resi ...

refer bks for chem inorg practice . nc ert i knw its imp but syill frm where ill get the practice of questions ??? so plz reply hw is RC ??? ...

ARE DIMENSIONS IN CLUDED IN JEE???? ...

BKS FOR GUD AMT OF QUESTION S LIKE OF TOPICS LIKS CALCULUS ...

The water equivalent of a copper calorimeter is 4.5g. If specific heat of copper is .09 cal /g/°c, then:- (1) Mass of the calorimeter is .5 kg (2) Thermal capacity of the colorimeter is 4.5 cal /° C (3) The heat required to ...

Tiit junta.., first of all, i wish all u guys good luck for the exam tomorrow. These times remind me of my JEE days. Im so excited that i almost feel as tho' i wanna give jee again.My word of caution, don't i repeat don't und ...

Hey JEE takers, best of luck for the exams.. Now its time to hold your nerve so now take a chill pill... Cheer up guys.. :) ...

(1) *Image* Find the equivqlent resistance between A and B. (2) *Image* Find current in each resisrot. ...

maximize, f(x) if, f(x)= tan-1{ (√[2-(x-1)2])/(8-x)} find x for maximum f ;) ...

find the values of k for which l x-1l + l x -2 l + lx + 1 l + l x +2 l = 4k has integral solutions ans in my book is 2 , 3 ,4 ,5 ..............why not one? ( matrix match type) srry i hv edited it now ..........plz proceed no ...

1.Sketch qualitatively the field lines between and outside two concentric conducting spherical cells with uniform +ve charge on inner shell and -ve on outer shell.Consider cases in which both charges are equal ,and one is gre ...

The correct acidity order of the following is *Image* (A)III>IV>II>I (B)IV>III>I>II (C)III>II>I>IV (D)II>III>IV>I ...

Here is some info regarding polymers from wikipedia. 1.Natural rubber: Natural rubber is an elastomer (an elastic hydrocarbon polymer) that was originally derived from a milky colloidal suspension, or latex, found in the sap ...

A cylinder of radius R made of a material of thermal conductivity k, is surrounded by a cylindrical shell of inner radius R and outer radius 2R. The shell has thermal conductivity k'. The 2 ends of the system are set at 2 dif ...

*Image* Questions are from HCV ...

1..are these positional or functional isomers -Ph-OH and Ph-CH2OH...give explanation ...

For CONCAVE minuscus adhesive force>cohesive For CONVX minuscus adhesive< cohesive For plane (neither concave nor convx angle of contact =90°) : a) adhesive<cohesive b) adhesive>cohesive c) adhesive=cohesive ???? ...

?? when pt^2=constant is given..? ...

If the resultant of all the external forces acting on a system of particles is zero, then from an inertial frame one can surely say that (A) linear momentum of the system does not change in time (B) kinetic energy of the syst ...

teh rms velocity of hydrogen is √7 times the rms velocity of nitrogen. If T is the temperature of the gas, T(H2) = T(N2) or T(H2) < T(N2) i am getting that both are equal....but the answer given is the second option p.s. ...

The allowed energy for the particle for a particular value of n is proportional to A) a-2 B) a-3/2 C) a-1 D) a2 ...

Among cellulose, poly(vinyl chloride), nylon and natural rubber, the polymer in which the intermolecular force of attraction is weakest is (A)Nylon (B)Poly(vinyl chloride) (C)Cellulose (D)Natural Rubber ...

THE HIDDEN THINGS ARE FOR MY REFERENCE TO CONFIRM ANSWERS THEY R IN NO WAY RELATED TO ANS OR QS (!) Mn 2+ can be oxidised to MnO4- by --- --> 13Fbl 1 (A) SnO2 (B) PbO2 (C) BaO2 (2) The reaction which proceeds in the forwar ...

Not to be outdone by Manmay's and Anand's excellent threads, I am making a thread for organic reagents. Post as many as you can! I begin with the chapter alkyl halides. You may continue it or post the functions of other reage ...

..select correct statement ------ 1..NH3 is more soluble in aq. NH4Cl than in pure water 2..solid amm. fluoride and ice are miscible in water in all propartions..... (give explanation[98] ...

1..formula for complex is (Co4)Co- (Co4)Co,in which there is single Co-Co bond is . a.Co2(Co)8 b.Co2(Co)10 ...

1. If x = 2 + 5i (where i2 = - 1) and 2(1/1!9! + 1/3!7!) + 1/5!5! = 2a/b!, then the value of (x3 - 5x2 + 33x - 19) is equal to (A) a (B) b (C) a - b (D) a + b ...

(1) 2 loudspeakers are emitting sound waves of wavelength \lambda with an initial phase difference of \frac{\Pi }{2} .At what minimum distance from O on line AB will one hear a maxima? *Image* (A)25\lambda (B)\frac{100\lambda ...

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