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why boiling point of cycloalkanes are more than correspondig unbranched alkanes with same molecular masses???? ...

let f:R-->R is a continous function on [1,3].let f(x) takes rational valeus for all x.if f(2)=10.f'(2)=0.find f(x) and f(1.5) ...

If cos(A-B)=1/2 and sin(A+B)=1/2 ,find the smallest positive values of A and B and also their most general values . ...

two point charges q and -3q are at some seperation. if electric field at location of q is E ,THEN AT THE POSITION OF -3Q IT WILL BE?? ...

Does it contain questions of mtech level as well or just btech level?? ...

TWO IDENTICAL THIN RINGS OF RADIUS R ARE COAXIALLY PLACED A DISTANCE R APART . IF Q1 AND Q2 ARE RESP. THE CHARGES UNIFORMLY SPREAD ON TWO RINGS WORK DONE IN MOVING A CHARGE q FROM CENTRRE OF ONE RING TO THE OTHER??? ...

A+B+C=180 degree. Prove that, 1)sin(B+2C) + sin (C+2A) + sin(A+2B) = 4sin(B-C)/2* sin(C-A)/2 *sin(A-B)/2 2) (sin2A+sin2B+sin2C)/(sinA+sinB+sinC) = 8*sin(A/2)*sin(B/2)*sin(C/2) 3)sin(B+C-A) + sin(C+A-B) + sin(A+B-C) =4sinAsinB ...

Sum to n terms: 2/3 + 8/9 + 26/27 + 80/81 ... Ans: n - 1/2(1 - 3-n) ...

1. A rod of mass m and length l is kept on a smooth wedge of mass M as shown in the figure . If the system is released when the rod is at the top of the wedge , find the speed of the wedge when the rod hits the ground level.{ ...

1st one is JEE 2010 quesn..... Lest s ={ 1 , 2 , 3 , 4 } . What r the total no. of unordered pairs of disjoint subsets of S ? 2. Let {x } and [x ] denote the fractional and integral part of a real no. x respectively. solve 4 ...

What is the exact value of cos 5° + cos 77° + cos 149° + cos 221° + cos 293°? ...

Which of these is true? Infinity a perfect square? Infinity is a Real Number Infinity is a Even number It is an odd number It is both even and odd It is neither even nor odd It is a Integer It is a rational number It is an ir ...

12 + 32 + 52 ... n terms ...

1) \int \frac{x^3+x+1}{x^2-1}dx 2) \int \frac{tan\theta +tan^3\theta }{1+tan^3\theta }d\theta 3) \int \sqrt{cotx}dx ...

Wanted to know whats the main point to keep in mind when solving trigonometries. Most of the time i find it REALLY difficult. for e.g. i jus could not solve this eliminate θ from the following sinθ.sinθ/cosθ= a^3 and cosΠ...

signum fn is defined as sgn x= |x|/x ={1 if x>0 {0 if x=0 {-1 if x<0 when x=0 sgn x will become 0/0 which is indeterminate. so how is its value 0? ...

When the moon is setting at any given place ,the angle that is subtended at its center by the radius of earth passing through the given place is 57' If the earth's radius be 6400 km ,find approximately the distance of the moo ...

1. If f: [-1 , 1] -> R and f ' (0) = limit n tends to infinity nf (1/n) and f(0) = 0 . Find the value of lim n tends to infinity 2/pi (n+1) cos inverse (1/n) - n . Given that 0< mod ( limit n tends to infinity cos inver ...

Simple Graph for XI students first... y=x2-x3 ...

What is hybridisation of Orbitals ...

From where to download it free?? ...

Which of the following sets of quantum nos. is not permitted ...

1) Why and how any root of an imaginary number is an imaginary number? I would be grateful if someone give me a deep knowledge about it. :) ...

What documents/materials do we need fro Aieee counselling?please reply or give a link where i can get that. ...

Just like 2 is the smallest natural number which can be represented a sum of two cubes in one way. i.e. - 2 = 13 + 13 Find the smallest natural number representable in two different ways as a sum of two cubes. ...

WHAT IS A 9-POINT CENTRE?? ...

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[pt (NH3)4 cl2] [ptcl2] write its iupac name....... ...

I had joined NIT Durgapur in Civil now they are teaching us C in 1st year I have windows 7 64 bit where can i download the same?? ...

σ-bond is stronger than a Π-bond..... hence when electrons are filled in the molecular orbitals σ2px should be filled before Π2py (or 2pz), (as in case of molecules with no. of electrons ≥ 15).... but for molecules with ...