Recently Active Mathematics Questions

from where i would get viteee sample papers ........... ...

let f:[1/2,1]→[-1,1] is given by f(x)=4x3-3x then f-1(x) is given by 1. cos (1/3 cos-1x) 2. 3cos(cos-1x) 3. 3sin(sin-1x) 4. 3sin-1(sinx) 5. sin(1/3 sin-1x) ...

If the line joining ortho centre and circum centre of triangle ABC is parallel to AC ,then tanA,tanB,tanC are in A. AP B. GP C. HP D. None ...

if f(x) =1 + ax (a≠0) is the inverse of itself then what is the value of a? ...

plz help me how to proceed stepwise in the following questions - 1.what is the sum of the series 12-22+32-42+...-20082+20092 2.sum of the series 1+1/2(1+2)+1/3(1+2+3)+1/4(1+2+3+4)+....upto 20 terms is ?? 3.The positive intege ...

*Image* ...

find the range of 'a' where 2 sinx =|x| + a has no solution . Plz give working also Ans. a>(3√3 + pi)/3 ...

*Image* answer Q 10,11,12,14,16. ...

*Image* answer Q no 18. ...

*Image* Plz answer Q no 5 and 7. ...

Let α=cis2Π/11 ,λ=α6 ,μ=α7, β=α2 1)Re(λ+λ2+λ3+λ4+λ5)= 2) (μ-β)(μ-β2).................(μ-β10)= 3)(i-β)(i-β2).................(i-β10)= answers -1/2 0 i ...

Q. Find the equation of the circle circumscribing the triangle formed by the lines :x+y=6 , 2x+y=4, and x+2y=5 , without finding the vertices of the triangle? ...

In how many ways can 18900 be split in 2 factorrs wich are relative primes ( or coprime ) ?? Ans : 8 ...

if α is the only root of the eqn x3+bx2+cx+1=0(b<c),then the vlaue of tan-1(α) + tan-1(α-1) a)-π/2 b)π/2 c)0 d)none ...

Q 1. In a triangle ABC , the in centre is the middle point of the median AD , then cos A has the value A. 7/8 B. 1/4 C. 1/3 D. 1/√2 ...

For what values of λ does the function f (x)=(λ+2)x3−3λx2+9λx−1 decrease for all x? ...

express in polar form 1.1 +itanA 2.tanA-i 3.1-sinA+icosA ...

d locus of middle points of chords of d parabola y2 =4ax which r such dat d normals at their xtremities meet on d parabola is ...

let fbe a linear function satisfying f(1)<=f(2) f(3)>=f(4) f(5)=5 then a)f(0)<0 b)f(0)=0 c)f(1)<f(0)<f(-1) d)f(0)=5 ...

jee is on 12th and today is 10th.by now all must have finished their mathematics practice and would like to have some nice revisionary notes.so,here it is. *Image* nishant sir,should i continue posting,if you permit. if any o ...

Reason-Assertion Type prob a)st-1 is true.st-2 is false b)st-1 is false,st-2 is true c)st-1 is true,st-2 is true,st-2 is correct explaination of st-1 d)st-1 is true,st-2 is true,st-2 is not correct explaination of st-1 Q1)St- ...

if a=cosA+isinA,then 1+a/1-a = 1.cotA/2 2.cot A 3.icotA/2 4.itanA/2 ...

if z=(1+2i)/{1-(1-i)2} then arg(z) is 1.0 2.pi/2 3.pi 4.none me getting 2tan-12 ...

∫ln(1+tanx) from o to pi/4 1)pi*ln2/8 2)pi*ln2/4 3)pi*ln2 4)pi*ln4 ...

maximum length of perpendicular from centre of ellipse x2/9+y2/4 =1 on any normal to this ellipse is equal to a+5, then value of a is a. -4 b. -3 c. 4 d. none ...

FIND THE INVERSE OF x+Sinx AND ALSO DRAW THE THE GRAPH OF BOTH THE FUNCTIONS ...

if z is a non-zero complex no.,then mod.[mod{(conjugate of z)2} /(z*conjugate of z)] is_______________. me getting 1. ...

if z=-2/(1+i√3),arg(z) is- 1.pi 2.pi/3 3.2pi/3 4.pi/4 ...

ΣΣ(r+s)(cr+cs+crcs) 0≤r ...

How to differentaite or integrate [x] ????? plzzzz tell fast i forgot [2][2][2] ...