Recently Active Mathematics Questions

If ‘head’ means one and ‘tail’ means two , then coefficient of quadratic equation ax2 + bx + c = 0 are chosen by tossing three fair coins. Then find the probability that roots of the equations are imaginary. jaldi pos ...

Let f be twice diff function satisfying f(1)=1,f(2)=4,f(3)=9 then: a)f"(x)=2 b)f'(x)=2 c)there exists at least one x E (1,3) such that f ' (x)=2 ...

Here i will be posting ques on probability which could prove to be useful 4 every1 Do try to give explanations if u can options will be given on demand[1] Q1 If the papers of 4 students can be checked by any one of 7 teachers ...

If a,b,c and u,v,w are 2complex nos. represeting teh vertices of 2 triangles such that c=(1-r)a+rb and w=(1-r)u+rv where r is a complex no. then what is relation between 2 triangles. ...

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3m+3n = 5r r ε N ......... find no. of ways of choosin m,n ε[1,100] ...

FIND da area bound by the curves : y = x2 + 2 & y = 2|x| - cos(Î x) OPTIONS : 2/3 4/3 8/3 1/3 ...

3 tangents are drawn at random to a circle .the odds against the circle being inscribed in triangle formedby them is ________ ...

the question is \lim_{\mu \rightarrow \inf}\frac{\mu ^{2}+1}{\mu +\mu ^{2}} there was something dificult with it being one so i thought if it is not 1 i better know it now than on 12 hehe[1] ...

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A ray represented by a unit vector u ,is reflected by a plane mirror,whose normal is given by another unit vector v,the reflected ray is along unit vector w. Express w in terms of v,u ...

What are the points of discontinuity of f(x)=[x]+\{x\}^{[x]}\qquad \forall \ x\ge \dfrac{1}{2} Here [x] is the greatest integer function, and {x} is the fractional part of x. ...

What normal to curve y=x2 forms shortest chord????? ...

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(ST)2 = SP.SQ WER S = FOCUS P,Q ARE points on the parabola T = point of intwersectn of tangents at P and Q ...

*Image* g(x)= x2 , if x is rationaal = 0 if x is irrational then 1. *Image* 2. *Image* 3. *Image* 4. *Image* ...

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if n positive terms are multiplied together the probabilities that the last digit are *Image* ...

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At what points is the function f(x)=[x^2]\sin \pi x\qquad \forall\ x\in\mathbb{R} discontinuous? ...

find locus of center of circle which touches (y-1)2+x2=1 externally and also touches X axis. ...

The....question is...the letters in vice chancellor are to be arranged so tht no two vowels r together...i wanted to ask can we fix alll consonants..and permute the vowels..... ...

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let f:(2,4)→(1,3) f(x)= x - [x/2] f-1(x) = ...

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The asymptotes of a hyperbola are x^2+4xy+y^2-2x+2y-2=0 and the hyperbola passes through (1,1) The centre of the hyperbola is? The conjugate axis of the hyperbola is? What is the eccentricity of the hyperbola? ...

Let l,m,n be three consecutive natural numbers (l>m>n).If the angle A of \Delta ABC be given by sinA= \frac{\left(a^{2}+b^{2}+c^{2} \right)\left(l^{2}+m^{2}+n^{2} \right)}\left(al+bm+cn)^{2} and the perimeter of the tri ...