The sum of two positive numbers is given. If the sum of their cubes is minimum, then
they are equal
one is twice the other
they are unequal
one is thrice the other
The perimeter of a sectoris a constant. Ifits area is to be maximum, then the sectorial angle is
4c
2c
The characteristic equation of a matrix A is , then is equal to
9
25
4
D.
4
The tangent to the curve xy = 25 at any point on it cuts the coordinate axes at A and B, then the area of the OAB is
50 sq units
25 sq units
75 sq units
100 sq units
The length of the subtangent, ordinate and the subnormal are in
AP
HP
GP
Arithmetico-geometric progression