If x = p + q, y = , where is a complex cube root of unity, then xyz equals to
p3 + q3
p3 - pq + q3
1 + p3 + q3
p3 - q3
If x1 and x2 are the real roots of the equation x2 - kx + c = 0, then the distance between the points A(x1, 0) and B(x2, 0) is
If p and q are distinct prime numbers and if the equation x2 - px + q = 0 has positive integers as its roots, then the roots of the equation are
1, - 1
2, 3
1, 2
3, 1
Out of thirty points in a plane, eight of them are collinear. The number of straight lines that can be formed by joining these points, is
296
540
408
348
A.
296
C.
408
Total number of points ma plane is 30
Out of them, 8 points are collinear
:. Total number of straight Iines formed
If n is an integer with 0 11, then the minimum value of n!(11 - 1)! is attained when a value of n equals to
11
5
7
9