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The number of ordered pairs (a,b) such that the equations ax+by=1 and x2 +y2 =50 have all solutions integral ??? ...

*Image* aisa kuch hota hai kya.... [11][12] ...

*Image* how many moles of NH3 will be liberated if 3 moles of NaNH2 reacts with 1 mole of above compound ?? ...

a light of wavelength λ is incident on a metal sheet of work function 2ev. The wavelength I varies with time as I=3000+40t., where I is in A and t is in sec.The power incident on the metal surface is 100W. the signal is swit ...

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We all know that all periodic functions can be formed from only trigonometric and inverse trigonometric functions. How can you express {x} and [x] in the above mentioned form? Basically, {x} = some t function and [x] = some o ...

Two moles of an ideal gas is expanded from 1 L to 10 L isothermally and reversibly at 300 K. Find enthalpy change for the reaction. ...

Till today i thought that benzyl cation was more stable than tertiary... But today I saw in a Engineering book that actually they both have almost equal stability but given a chioce tertiary is favoured... can anybody confirm ...

when a charged body is brought near a neutral conducting body, the induced charge that appears on the nearer surface of the conducting body is always equal and opposite to the charge that has been brought in ...

Find the Oxidation no. of each S atom is S2O32- ...

which of the following is the weakest acid in H2SO4 ?? a) ClO4- b)NO3- c) HSO4- d) CN-. ...

I saw something like this in Mathematics today sometime.. \sum_{1}^{n}{\frac{k+2}{k!+(k+1)!+(k+2)!}} Find this.... ...

Find the lengths of diagonals of the parallelogram constructed on the vectors p=2a+b and q=a-2b, where a and b are unit vectors and forming an angle of 60°. ...

1. If the vectors a=3i+j-2k, b=-i+3j+4k and c=4i-2j-6k constitute the sides of triangle ABC, then find the length of the median bisecting the the vector c. ...

If the vectors 3p+q;5p-3q and 2p+q;4p-2q are the pairs of mutually perpendicular vectors then find the value of sin(p^q). ...

"Did you know what will happen if you eliminate the empty spaces from the universe, eliminate the empty spaces in all the atoms? The universe will become as big as my fist." this are lines said by Umberto Eco in our english b ...

can anyone post the correct graph of resistivity vs temp. of an electrolyte ..... ...

*Image* A weightless rod with a length `l` is rigidly attached to a weightless pulley with radius `r`. The end of the rod carries a mass `m` .A string to whose free end a mass `M` is fastened is passed over the pulley . in wh ...

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Figure represent four option of a current carrying coil in a magnetic field directed towards right. *Image* *Image* a) I>II>III>IV b) I>III>II>IV c) II>III>I>IV d) I>III>IV>II Plz.... Gudie ...

In compound : COOH(Y) (X)H3N *Image* NH3(Z) the correct acidic order????????????? ...

I gave a graph of the day y=\frac{x^{2}+x+1}{x^{2}-x+1} When i was seeing the solution by users, I noticed something very interesting! you have to explain something very interesting that is going on in this graph... the graph ...

1. Viscosity of fluids decreases with rise in temperature , but of gases increases with increase in temperature ... PLEASE explain why is it so ? 2. We know that if the impurity is completely soluble then on mixing it in the ...

\frac{y-1+\left|x-1 \right|}{y-x^{2}+2x}\leq 0 ...

Q if x and y are 2 intensive variables then :- a) xy is an intensive variable b) x/y is an intensive variable c) (x+y) is an intensive variable d) dx/dy is an extensive prorperty ( more than 1 correct) ...

Q in the circuit diagram each resistor is of resistance 5 ohm . the points A and B r connected to terminals of a cell of emf 9 volt and internal resistance 2/3 ohm. *Image* find heat produced in cell and the current in resist ...

Squaring numbers in the 300s Choose a number in the 300s (practice with numbers under 310, then progress to larger ones). The first digit of the square is 9: 9 _ _ _ _ The next two digits will be 6 times the last 2 digits: _ ...

SORRY, PUT IT IN THE WRONG SLOT. ...

Shortcut methods [NOTE: Try the given problems with the conventional methods first and then look into the shortcut methods given.This makes it evident to you, the lesser labour involved, in comparison to the conventional meth ...