Recently Active Mathematics Questions

d probability dat 2 frnds will b able to meet each other between 'a' hours & 'b' hours not waiting for each other more than 'c' hours is ? if 3 squares are selected at random on a chess board den d probability datdey lie on a ...

let f(x) be a function such that f(x-1) +f(x+1)= 2 f(x) then find the period of f(x). ...

What is the value of limn→∞Πn=0n(1+1/22n)?? ...

limx→∞( (x+a)(x+b)(x+c) - x) = ?? ...

if 2<m<=4 and cosA = 1/2 ((m-2)(m+2)/m-1) .... 2b=ma prove that there are 2 values of thee third side which are in the ratio (m-1):1 ...

Show that the sum of the (m+n)th and (m-n)th terms of an A.P is equal to twice the mth term. ...

Let f:(4,6)--> (6,infinity) be a funtion defined by f(x) = x +[x/2], where [] is GIF.Then f-1(x) = a. x-[x/2] b.-x-2 c.x-2 d. NOT How to find the inverse of such funtions involving GIF, fractional part etc.. And soln and e ...

εIf P(n) = 2+ 4 + 6+....+ 2n, n N, then P(k) = k(k+1) + 2 => P(k+1) = (k+1)(k + 2) + 2 for all k belongs to N. So we can conclude that P(n) = n(n+1)+2 for a. all n belonging to N b.n>1 c.n>2 d. nothing can be said A ...

The relation "congruence modulo m" on the set I of all integers is a.An equivalence b.A partial order relation c. reflexive and symmetric d.reflexive and anti symmetric Pls explain the Q and option B ...

If funtion :R-->R be such that f(x)= x - [x], where [] is GIF..Then f-1(x)= a. 1/x-[x] b.[x]-x c.not defined d.NOT ...

If the quadratic eqn ax2+bx+c=0 has -2 as one of its roots then ax + by +c =0 represents a. A family of concurrent lines b.A family of parallel lines c.A single line d. A lineperpendicular to x-axis I thought to be B But the ...

The value of 2*a and 2*b such that (where a and b satisfies) Ltx-->0 x(1+acosx)-b sinx =1 ------------------------- x3 a. 5,3 b. 5,-3 c.-5,-3 d.NOT ...

The value of limx-->0(cosx + a sinbx)1/x Ans was e^ab The method was using the expansion...but pls explain how the higher powers gets cancelled out..(because denominator of cos and sin goes as 2! , 3! respectively) ...

The value of Ltn->infinity(1/1.3 +1/3.5+....n terms) a. 1/4 b.1/2 c. 1 d. NOT ...

observe the given sequence of nos. , which has two missing nos. at the end. 20 18 17 16 14 14 11 12 ? ? a) 8,10 b)12,11 c)13,9 d) 9,10 ans nahin pata ...

this is really a simple one...... just wanted to check my answer. So pls co-operate [1] Using transformations or otherwise , find correct four places of decimals the value \prod_{1}^{5}{} (zi+1)/(2zi-1) where Zi are the roots ...

If α,β are the two roots of the equation λ(x2-x)+5=0 such that, α/β + β/a =5 and λ1,λ2 are any two values of λ Find the value of λ1/λ2 + λ2/λ1 ...

∫(tan x)1/3 dx ...

Could anyone please post a copy of all B.Stat Subjective Questions? ...

If\ f(x)=\sqrt{1-sin(2x)},f'(x) equals\\\ \\ a)-(cos x + sin x) for\ x\in(0,\pi/4)\\b)(cos x + sin x) for\ x\in(\pi/4,\pi/2)\\c)-(cos x + sin x) for\ x\in(\pi/4,\pi/2)\\d)(cos x + sin x) for\ x\in(0,\pi/4)\\ ...

The sum of the square of the length of all the possible chords intercepted by the line x + y = n, for some n(belongs to N) on the circle x2 + y2 = 4 is what? ...

3 numbers are chosen from a set of {1,2,3...4n}...the number of ways of choosing such that the sum of them is divisible by 4..?? ...

the equation x- cosx =0 has a.exactly one root in (0,pi/6 ) b.exactly one root in (pi/6,pi/3) c.exactly one root in (pi/3, pi/2) d. has infinite solution in (0, pi/2) i tried to draw the graphs of y= cosx and y=x on the same ...

If A and B are two matrices such that AB=A and BA=B then B2 equals (a)B (b)A (c)1 (d)0 Plz give soln also. ...

Q1. Let ABC be a triangle and let P be an interior point such that <BPC=90°, <BAP=<BCP. Let M,N be the midpoints of AC,BC respectively. Suppose BP=2PM. Prove that A,P,N are collinear ...

What is rank of a matrix??Please explain with an example. ...

Find xyz... x+\frac{1}{y}=4 , y+\frac{1}{z}=1 , z+\frac{1}{x}=\frac{3}{7} ...

Antonym Autonomy 1. submissiveness 2. slavery 3. subordination 4. dependence.. ...

If l,m,n are positive integers greater than 1, lm=21 & mn=39, then which of the following must be true? (n>l>m) or (m>n>l) or (n>m>l)? My method: I have understood how n>l. So, I have given only those opt ...

What is the largest positive integer n so that n! can be expressed as the product of n - 3 consecutive positive integers? ...