Recently Active Mathematics Questions

2 nos. are randomly selected frm 1,2,3,..........25 Wat is the prob. that Diff. b/w First and the Second no. selected is NOT less than 10 I m getting 2/5 Ans given : 1/5 ...

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yhe value of ∫1a [x] f'(x) dx, [x] represent greatest integer ...

if y=mx be the equation of the chord of the circle x2 +y2 -2ax=0 ,then find the equaiton of the circle of which this chord is the diameter? ...

if roots of a quadratic equation are imaginary, then these are conjugates of each other...true/false ...

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find the number of surjections from A to B where A={1,2,3,4} and B= {a,b,c} . please explain :) ...

How to find the sum of the following series- (1)1/1x2+1/2x3+1/3x4+...upto n terms (2)52+62+72+...202 (3)12+(12+22)+(12+22+32)+...upto n terms. Please give proper methods. ...

plz tell me all types of methods to find the sum of special series and all other types of series ...

a NCERT ques.- if z1=2-i,z2=1+i, find modulus[(z1+z2+1)/(z1-z2+i)] ...

the no. of rational points on a circle having centre at (Î ,e) is_____ ...

from an arbitrary point p on the circle x2+y2=9,tangents are drawn the circle x2+y2=1 andwhich meet the circle x2+y2=9 at A and B .locus of points of intersection of tangents from A and B. is (subjective type) ...

A RELATION R IS DEFINED FROM A SET A={2,3,4,5} TO A SET B={3,6,7,10} AS FOLLOWS: R={(X,Y):X IS RELATIVELY PRIME TO Y} EXPRESS R AS A SET OF ORDERED PAIRS SOLUTION: R={(2,3),(2,7),(3,7),(3,10),(4,3),(4,7),(5,3),(5,6),(5,7)} IS ...

If A and B are two mutually DEPENDENT eventws wat deduction can v make?? nething apart frm P(A∩B)≠PA.PB ??? ...

Q2 Sin[ 2cos-1{cot(2tan-1 x)} ]= 0...... solve for positive value of x... a) x=1,√2-1,√2+1 b) x=1,12,13 c) x=1,√3-1,√3+1 d) x=√2+1,√3-1 ...

wen appylying formulae lyk tan inv + tan invers = tan -1(x+y/1-xy) can sum1 tell me if ther is a genreal rule for addtn/subtctn of Î wen negative n all dat........ OR IT HAS TO BE REMEMBERED CASE to CASE basiss?? ...

One topic troubling me in 3D coordinate geometry is the reflection of a line by a given plane ... can someone please help me .. nishant bhaiya please tell me the approach ?? ...

consider the integral \int_{0}^{inf}{x^{\mu}}dx where μ is real . We have \int_{0}^{inf}{x^{\mu}}dx = \int_{0}^{1}{x^{\mu}}dx + \int_{1}^{inf}{x^{\mu}}dx = I1 + I2 , where I1 is evaluated using the limitng process \lim_{\eps ...

in d world cup d tournament is arranged as per following rules in d beginning 16 teams r taken & divided into 2 groups of 8 each teams of each group play a match against each other in d same group from each group 4 top qualif ...

two squares r enclosed in an unit circle.wat shld be their minimum common area??? ...

1+x + x^2 .......................infinity = 1/1-x .......... integrate both sides .. x + x^2/2 + ............ = ln(1-x) - ln(1) put x = 1 ..... ln0 = 1+ 1/2 + 1/3 + 1/4 .................... [3] ...

how to find the sum of the series- (1)x2+x4+x6+....+x2n (2)1/x2+1/x4+....1/x2n. Please tell in a proper stepwise manner. ...

*Image* is such a que likely on 12th BTW if u know then pl give soltn i dont hav the answer ...

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xy+yx=50 x n y ?? i know answer , infakt i only created question !! so.......answer like bolt !wwatsit ? ...

Out of 46 consecutive integers two are chosen...find the probability that their sum is odd ...

y = 16x2 + 8(a+5)x -7a -5 Find. prob of graf of y bein STRICTLY gr8er than ZERO for x ε [-20,0] PN : Ther is no condition given on a..... i dunno y........ i feel its an incomplete Questn .... if u tooo feel so do tell me ed ...

if the focus of parabola y2+8=4x coincides with one of the foci of ellipse3x2+by2-12x=0 then eccentricity of ellipse is a. 1/2 b.1/√2 c.1/4 d. none of these paragraph question ABCD is a trapezium in whichAD is perpendicular ...

1.) 0∫Πsin17xcos7x dx 2.) 0∫Π/2 sin8xcos8x dx 3.) 0∫Πsin3x cos6x dx. ...

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