If , x,y and z are distinct prime numbers, then

If x ,y ,a n dz are distinct prime numbers, then x , y , a n dz may be in A.P. but not in G.P. x , y , a n dz may be in G.P. but not in A.P. x , y , a n dz can neither be in A.P. nor in G.P. none of these

If pa n dq are distinct prime numbers, then the number of distinct imaginary numbers which are pth as well as qth roots of unity are. a. min(p ,q) b. min(p ,q) c. 1"" d. z e ro

If x,y,z are positive numbers in A.P., then

Let f(x)=x^(2)-ax+b , 'a' is odd positive integar and the roots of the equation f(x)=0 are two distinct prime numbers. If a+b=35 , then the value of f(10)=

Let A and B be two sets such that n(A) =3 and n(B) =2. If (x, 1), (y, 2), (z,1) are in A xx B, find A and B, where x, y and z are distinct elements.

If x,y,z are nonzero real number , then the inverse of matrix A= {:[( x,0,0),( 0,y,0) ,( 0,0,z) ]:} is

If x,y,z are positive real numbers such that x^(2)+y^(2)+Z^(2)=7 and xy+yz+xz=4 then the minimum value of xy is

if x , 2y and 3z are in AP where the distinct numbers x, yand z are in gp. Then the common ratio of the GP is

The x , y , z are positive real numbers such that (log)_(2x)z=3,(log)_(5y)z=6,a n d(log)_(x y)z=2/3, then the value of (1/(2z)) is ............