List of top Mathematics Questions

The area of the region bounded by the curve y=x|x|, x-axis and the ordinates x=1, x=-1 is given by

The value of ⁻¹x+⁻¹((x)/(2)+(1)/(2)√(3-3x²)); \frac12 x\le1 is

The value of vmatrix 1 & 2 & 3
-4 & 3 & 6
2 & -7 & 9 vmatrix is

Let E=1,2,3,4 and F=1,2. Then the number of onto functions from E to F is

If f(x)=x√(1+x²), then (f f)(x) is

If A=bmatrix1&3
3&2
2&5bmatrix and B=bmatrix-1&-2
0&5
3&1bmatrix and A+B-D=0 (zero matrix), then D matrix will be

Let f(x)=cases ax²+1, & x>1
x+a, & x\le1 cases Then f(x) is derivable at x=1, if

A black die and a white die are rolled. Find the probability that the number shown by the black die will be more than twice that shown by the white die.

Find the value of ₓₒ₀√(1+x²)-√(1-x²)x².

Mean of 25 observations was found to be 78.4. But later it was found that 96 was misread as 69. The correct mean is

If the mean, mode and S.D. of a frequency distribution are 41.45 and 8 respectively, then its Pearson’s coefficient of skewness is

Find the equation of chord of the circle x²+y²=8x bisected at the point (4,3).

The line ax+by=1 cuts ellipse cx²+dy²=1 only once if

In a polygon no three diagonals are concurrent. If the total number of points of intersection of diagonals interior to the polygon be 70, then the number of diagonals of the polygon is

With 17 consonants and 5 vowels, the number of words of four letters that can be formed having two different vowels in the middle and one consonant, repeated or different at each end is

If the equations of the opposite sides of a parallelogram are x²-5x+6=0 and y²-6y+5=0, then equations of its diagonals are

The reflection of the point (4,-13) in the line 5x+y+6=0 is

The coefficient of x³² in the expansion of (x⁴-1x³)¹5 is

If arithmetic means are inserted between 1 and 31 so that the ratio of the 7th and (m-1)th means is 5:9, then find the value of m.

If the line 2x-1=0 is the directrix of the parabola y²-kx+6=0, then one of the values of k is

The roots of the equation x²-2√(2)x+1=0 are

\tan20^+\tan40^+√(3)\tan20^\tan40^ is equal to

If 12²θ-31θ+32=0, then the value of θ is

Let A=\x:x R, |x|<1 B=\x:x R, |x-1| 1 and A B=R-D, then the set D is

If 1-iα1+iα=A+iB, then A²+B² equals