Recently Active Questions

∫dx/tanx+cotx+secx+cosecx ...

1+x2y2)dx=ydx+xdy ...

Find the accln of the block of mass M shownin the figure . The co-efficient of friction between the 2 blocks is μ1 and that between the bigger block and ground is μ2 *Image* ...

If f(x) is a function which is both even and odd, then f(3) - f(2) is equal to (a) +1 (b) -1 (c) 0 (d) none ...

Explain..why does O3 and NO2 show permanent dipole moment?? ...

*Image* ...

Imagine a flat earth extending to infinity in all directions.How thick should the earth be to have the same gravity at the surface as we have now? Density=5515 kg/m3 and g=9.81m/s2 ...

Convert ethanal to cyclohexylcarbaldehyde ...

*Image* The diagram shows the graph of the derivative of a function y=f(x) for 0<=x<=5 with f(0)=0. ∫f(x)dx= [limits from 0 to 1] a.-21/20 b.21/20 c.-1 d.none of these Sir u said option b or d must be correct out of d ...

*Image* If R1 = 3 ohm R2 = 2 ohm R3 = 7.5 ohm R4 = 5 ohm R5 = 5 ohm R6 = 10 ohm R7 = 20 ohm Find the equivalent resistance between A and B. ...

What is the remainder 709! is divided by 719? ...

Limn→ ∞ [ n2 . ∫ ( tan-1 nx)/( sin-1 nx) dx Integration upper limit:- ( 1/n ) Integration lower limit:- { (1+ n ) / n } ...

If you flip a fair coin ten times, what is the probability there will be at least one sequence of three consecutive heads or three consecutive tails? ...

Directions: Questions from 1 to 5 are based on answer you are going to mark these 5 questions. 1. The first question with B as the correct answer is: a) 1 b) 4 c) 3 d) 2 2. The answer to Question 4 is: a) D b) A c) B d) C 3. ...

There are two drawers in each of three boxes that are identical in appearance. The first box contains a gold coin in each drawer, the second contains a silver in each drawer, but the third contains a gold in one drawer and a ...

If voltage is a scalar quantity, how can it be negative? Thanx in advance... ...

Work, energy, potential etc. are all scalar, but they can have negative values too. How can scalar be negative? They should neither be positive nor be negative as they are independent of the direction. P.S.: W=FScosΘ; F=vect ...

A metallic ball is suspended by an insulated string, in an uniform electric field. A X-Ray of high radiation is passed through the ball in the field. What will happen to the ball? ...

A Van is standing on a frictionless portion of a horizontal road. to start the engine, the vehicle must be set in motion in the forward direction. how can the person sitting inside the van do it without coming out and pushing ...

P.T for any function f(x) and g(x) integrable on the interval (a,b).. \int_{a}^{b}f(x)g(x)dx\leq \sqrt{\int_{a}^{b}f^{2}(x)dx\int_{a}^{b}g^{2}(x)dx} ...

THE DEACCELERATION EXPERIENCE BY A MOVING MOTOR AFTER ITS ENGINE IS CUT OFF IS GIVEN BY dv/dx=-kv3 where k is constant if v0 is the magnitude o velocity of cut off, find te magnitude of velocity at time t after the engine is ...

A filled water bottle is lying on the ground. You pick it up and put it on a table which is at some height from the ground. Thus the potential energy of the bottle increases. Does the internal energy of the water molecules in ...

A small bar starts sliding down an inclined plane forming an an angle α with the horizontal.The friction coefficient depends on the distance x covered as μ=Kx where K is a constant.Find the distance covered by the bar till ...

For an expression x2 - 5x + 6 = (x + a)(x + b), then ...

http://www.stumbleupon.com/su/52sDjJ/theoatmeal.com/comics/tipping_tooting/ *Image* To read the whole comic go to the link above. ...

\hspace{-16}$Determine all pairs $\bf{(a, b)}$ of natural numbers, for which the number\\\\ of $ \bf{a ^ 3 + 6ab + 1} $ and $ \bf{b ^ 3 + 6ab + 1}$ are cubes of natural numbers. ...

f(x) = ∫ 1-sin(2x) then f(Π/4) = ? will it be 2 or 0. because in the sheet that you gave the answer given at the back is (cosx + sinx)sgn(cosx-sinx)+c ...

\hspace{-16}$Calculation of real values of $\bf{(a,b,c)}$ such that $\bf{x^3-ax^2+bx-c =0}$\\\\ has a roots $\bf{a\;,b}$ and $\bf{c.}$ ...

\bf{\int\frac{1}{(x^2-x+1)\sqrt{x^2+x+1}}dx} ...

\hspace{-16}$factors of $\bf{a(b-c)^3+b(c-a)^3+c(a-b)^3}$ ...