Recently Active Mathematics Questions

The result of 21 football matches(win/lose/draw) are to be predicted.Find the number of different forecasts which contain exactly 18 correct results. ...

Find y such that it passes from (0,3) dy/dx-2y/(x+1)=(x+1)3 ...

no of ways in wich d first 3 moves of chess can b played ? ...

Find the no of possible sudokus that can be formed with no's from(1 to 9) ...

d2y/dx2=x ln(dy/dx) what is the degree of the eqn.?? ...

x+2|y|=3y where y=f(x),then f(x) is.... A)continuous everywhere B)diff everywhere C)discontinuous at x=0 D)none ...

the qn is ondefinite integral as the limit ofa sum/ integration using 1st principle lim n->∞{1/n + n2/(n+1)3 +n2/(n+2)3+.............+1/8n ny1 relpy as fast as possible ...

f(x)=[x]+[-x] so for integral values of x, f(x)=0 then f'(x)=0.....so hw come it cannot be diff at integral pts.... ...

f(x)= (sin2x + sinx -1)/(sin2x -sinx + 2) ...

statement1: let f:[0,4]-> R be a cont fn and diff in (0,4) then there exist some 'a' and 'b' in (0,4) where f2(4)-f2(0)=8f(a)f'(b). statement2: LMVT ...

f'(2+)=0 and f'(2-)=1 then a)fn is discontinuous at x=2 b)fn is continuous at x=2 c)lim f(x) ≠lim f(x) x→2+ x→2- d)nothing can be said ...

Solve 4{x} = x+ [x] [] is gint & {} is fractional part ...

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The number of ways in which we can select four numbers from 1 to 30 so as to exclude every selection of four consecutive numbers is???? ...

How many triangles can be constructed whose largest side is (a) 2p (b) 2p -1 also find the number if 2p =10 .i.ie the lenght of largest side is 10 . i.e. a≤b≤c =10 . ...

In a triangle . ABC , D is a point on BC such that AD is the internal bisector of A .If B = 2C . Prove that A=72o. ...

1.) ∫xtanxsecxdx/(tanx-x)2 2.) ∫2dx/((x-5)+(x-7))√((x-5)(x-7)) = f(g(x)) +c, then a) f(x)=sin^-1x , g(x) = √((x-5)(x-7)) b) f(x)=sin^-1x , g(x) = ((x-5)(x-7)) c) f(x)=tan^-1x , g(x) = √(( ...

sin10x+cos10x=(29/16)cos4(2x) Solve for x ...

Prove: 1/(n+1) + 1/2(n+1)2 + 1/3(n+1)3 = 1/(n) - 1/2(n)2 + 1/3(n)3 ...

Asked by krish1092 2cos9xcos7x=2cos5xcos3x and 2sin5xcos3x=2sin9xcos7x ...

U have n identical coins... How to divide it into k parts such that each part has a maximum of M and a minimum of N? ...

why cant f(x)=[x]+[-x] be differentiated even though f(x)=-1 for all x??? [x] represents the greatest integer function... ...

Find range of y: y=4{x}3-3{x}-1 ...

Prove that 3(cot2θ+tan2θ)-8(cotθ+tanθ)+10≥0 ...

∫xtanx dx can this be done!!! ...

0∫pi/4(etanx(secx-sinx))dx ...

if f(x)and g(x) are two functons with all real no.s as their domain, then h(x)= (f(x)+ f(-x))(g(x) - g(-x))..is... i) always an odd function ii) an odd function when both the f and g are odd iii) an odd function when f is ...

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In how many ways can 20 identical balls be distributed among 9 children? i want to make it clear: *all 20 balls may not be distributed *each of them may not get a ball ...