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A circle which contain a quadrelateral of maximum area and this quadralateral is contain a triangle of maximum area..IF triangle has its side of 4cm. Then find out all side of quadralateral and diameter of circle. ...

well....organic a nightmare for many fun for others....a house of many exceptions to basic phenomenon n reactions is the beauty of ORGANIC CHEMISTRY!!!!!!! so this thread is dedicated to those exceptions in organic chemistry! ...

Plz help me in these questions..............(FIITJEE Package) 1. Prob of A wining a game is 0.4 while that of B is 0.6 . What is the probability of A wining a best of 7 games? 2. If Ram and Shyam selects two numbers at ra ...

Let d be the perpendicular distance from the center of the ellipse x2/a2 + y2/b2 = 1 to the tangent drawn at a point P on the ellipse. If F' and F'' are the two foci of the ellipse , then show that (PF' - PF'')2= 4a2[ 1- (b2/ ...

A time varying force F=2t is applied on a spool.The angular momentum of spool at time t about bottommost pt. is?????????? *Image* ...

A variable tangent of ellipse x^2/a^2 + y^2/b^2 =1 Meets co-ordinate axes at point A & B, then find the min. Area of circumcircle of triangle OAB??? ...

If a,c,b are in G.P then the line ax+by+c=0 (A) has a fixed direction (B) always passes through a fixed point (C) forms a triangle whose area is constant (D) none of these ...

27Al13 is a stable isotope,29Al13 is expected to disintegrate by A. alpha emission B. beta emission C. positron emission D. proton emission. ...

an electric bulb rated 50W at 100V is used in a circuit having a 200V supply. What resistance R must be put in series with the bulb so that then bulb delivers 500W? ...

1) Find the no. of rational roots of- P(x) = 2x98 + 3x97 + 2x96 + 3x95 +....+2x+3 =0 (Hence, find the roots too.) 2) Least degree of a polynomial with integral coeff. of which a= 31/2007 is a zero is- a)223, b)669, c)2007, d) ...

A one litre gas bulb contains 1.03*1023 H2 molecules. If the pressure exerted by these molecules is 760mm of Hg, what must be root average squared molecular speed?? ...

Prove that two of the straight lines represented by equation ax^3 + bx^2y + cxy^2 + dy^3 =0 will be at right angled if a^2 + ac + bd + d^2 =0. ...

The molecules MLx is planar with 7 pairs of electrons around M in valence shell. The value of x is ... ?? Integer type.! ....This question was posted first by Subhomoy bhaiya,again repeated......Well Wats dat 7 pair of electr ...

find the range of y y=1/|sinx| +1/|cosx| ...

a square is inscribed in a circle x2+y2-2x+4y+3=0, whose sides are parallel to the coordinates axes one vertex of the square is? ...

1. Boiling of egg 2. Dissolution of sugar in water ...

22. A straight line is drawn from the point(1,0) to the curve x2+y2+6x-10y+1=0, such that the intercept made on it by the curve subtends a right angle at the origin. Find the equations of the line. 23. Determine the range of ...

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A mark placed on the surface of a glass sphere is viewed through a glass prism form an oppositely directed position. If the diameter of the glass sphere is 20 cm, find the position of image if refractive index of glass is 1.5 ...

*Image* I THINK WE WILL GET *Image* AM I CORRECT??????????????? ...

Among KO2, AlO2-, BaO2 and NO2+, unpaired electron is present in a) NO2+ and BaO2 b) KO2 and AlO2- c) KO2 only d) BaO2 only ...

the magnetic field due to current carrying circular loop of radius 3cm at a point on the axis at a distance of 4cm from the centre is 54 micro tesla. what will be its value at the centre of the loop ...

does propan-2-ol give iodoform test ? confused about it. So thought of asking it here. Really confused about it hmm?? ...

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The ionization constant of NH4+ in water is 5.6 x 10-19at 25 C.The rate of constant of the reaction of NH4+ and OH- to form NH3 and H2O is 3 x 1010 L/mol s.Calculate the rate constant for proton transfer from water to NH3. ...

Let a,b,c be three distinct positive numbers which are in G.P. If logca , logbc , logab are in A.P., then the common difference of the A.P. is.... REPLY SOON..... ...

Traditionally been weak in this part of mechanics...pulley problems samajh aate they magar usse zyaada nahi. Q. A hinged construction consists of three rhombuses with the ratio of sides 3:2:1 . Vertex A3 moves in the horizont ...

A cylindrical vessel of radius r containing a liquid spins continuously with angular velocity ω. Find the pressure at the radialk diatance r from the axis. Take P1 as atmospheric pressure..... ...

If m1 and m2 are the roots of the equation x^2+(√3+2)x+√3-1=0.then find the area of the triangle formed by the lines y=m1x,y=m2x and y=c. ...

At 200 degree Celsius pcl5 dissociate as follows pcl5= pcl3 +cl2 .it was found that the equilibrium vapours are 62 times as heavy as hydrogen .The degree of dissociation of pcl5 at 200 degree Celsius is ...