Recently Active Mathematics Questions

o∫pi/2 dx/ 1-ksin2x yeh pleeeeeeeeeez koi banao .... kal poori saat nahi so payee theek se.. iske chalte... have bcome dumb in integration i think :( :( ...

Read the question.... Game show host asked contestants to select one of three closed doors. Behind exactly one of the doors was a valuable prize. After the contestant had selected a door but before it had been opened, host. w ...

let x be any real number, then, x2= x+x+x.....upto x terms differentiating both sides wrt x 2x= 1+1+1.......upto x terms or,2x=x or,2=1. find where is the mistake? forgive me if you think it is a stupid question.it was asked ...

for any differentiable function y=f(x) d2y/dx2 + (dy/dx)3(d2x/dy2) = ??????? kaise approach kare plz batayie ...

Show that the locus of the point that divides a chord of slope 2 in the ratio 1:2 is a parabola. Find the vertex of the parabola obtained! ...

Find the equation of the chords of the parabola y2=4ax which passes through the point (-6a,0) and which subtends an angle of 45° at the vertex. ...

Find the equation of the circle that passes through the focus of the parabola x2=4y and touches the parabola given at the point (6,9). (My specific doubt is that we can form the two equations from the two given points but whe ...

if in a AP suthe sum of m terms is equal to sum of next n terms is equal to sum of next p terms... then prove that m+n *( 1 / m - 1 / p) *Image* ...

Through the vertex O of the parabola y2=4ax, chords P and Q are drawn at right angles to one another. Show that for all positions of point P, PQ cuts the axis of the parabola at a fixed point. Also find the locus of middle po ...

A bag contains unlimited number of white, red, black and blue balls. The number of ways of selecting 10 balls so that there is atleast one ball of each colour is...... ...

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The numbers of solutions of x1 + x2 + x3 = 51 (x1, x2, x3 being odd natural numbers) is....... ...

find no. of ways in which 4 letters can be put into 4 envelopes such dat nothin occupies its original place.............. ...

post derivation of multinomial theorm........................ ...

A square is filled with 100 small lamps, arranged in 10 rows and 10 columns. Some of them are on, the others are off. Each lamp has a push-button that, when pressed, switches all the lamps in its row and column (including the ...

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The Monty Hall problem Game show host Monty Hall ("Let's Make a Deal") asked winning contestants to select one of three closed doors. Behind exactly one of the doors was a valuable prize. Occasionally, after the contestant ha ...

A number is seelceted randomly from 3 digit nos. 100,101...........999 .The prob that in the selected no. at least one of the digits is 9 is?? ...

in constructing a problem on vectors,3 componts of vector are randomly chosen from digits 1 to 5 with replacements.What is prob that magnitude of vector is 5?? ...

9) Number of points outside the hyperbola (x2/25) - (y2/36) =1 , from where two perpendicular tangents can be drawn to the hyperbola is(are) a> 3 b> 2 c > 1 d>0 16) If a circle x2+y2=4 intersects a rectangular hyp ...

1) The greatest value of (sin-1x ) 3 +( cos-1 x) 3 2) The value of sin(cot-1 (cos(tan-1 x)) 3) The smallest and the largest values of tan-1 [( 1-x) / (1+x)] ...

prob that length of a randomly chosen chord of circle lies b/w 1/2 and 3/4 of its diameter???? ...

Which of the following functions are differentiable at x=0? A.) sinlxl+coslxl B.)lxl+sinlxl C.)lxl+coslxl D.)lcosxl+coslxl please give the reason i know the answer! but there is a controversy between the theory and answer giv ...

the number of continuous functions onR which satisfy (f(x))^2 = x^2 for x belongs to R is ? ...

if S=summation (1/r) and the limits is from 1 to 2047 then find the range of S the option were 5<S<6; S>6; 11<S<12; and S<11; please give ur soln ...

|a|=2,a.b =1,angle between a and b = 60 . r is any vector satisfying: r.a=2 r.b=8 (r+2a-10b).(a x b) = 4 3 (r+2a-10b) = λ(a x b) then λ = A)1/2 B)2 C)1/4 D)4 ...

The set of points on the asix of the parabola 2((x-1)2+(y-1)2)=(x+y)2. , from which 3 distinct normals can be drawn to the parabola , is the set of points (h,k) lying on the axis of the parabola such that a) h>3 b) h>3/ ...

Q) A window is in the shape of a rectangle surmounted by a semicircle,If the Perimetre of the Window is Pcm show that the Window lest in the maximum possible light only when the radius of the semicircle is P/(Ï€+4)cm.? Prove ...

f(x) = x/ (1 + |x|) is : a) diff for all x. b) diff for all except x=0. c) conituous for all x. d) cont for all x but not diff at x=0. am getting a and c .... pls ans guys... ...