Let f : be defined by f(x) = x4, then
f may be one-one and onto
f is neither one-one nor onto
f is one-one and onto
f is one-one but not onto
Binary operation * on R - {- 1} defined by is
* is neither associative not commutative
* is associative but not commutative
* is commutative but not commutative
* is associative and commutative
A.
* is neither associative not commutative
The rate of change ofvolume of a sphere with respect to its surface area when the radius is 4 cm is
4 cm3/cm2
6 cm3/cm2
2 cm3/cm2
8 cm3/cm2
If a matrix A is both symmetric and skew symmetric, then
A is diagonal matrix
A is a zero matrix
A is scalar matrix
A is square matrix
If an LPP admits optimal solution at two consecutive vertices of a feasible region, then
the LPP under consideration is not solvable
the LPP under consideration must be reconstructed
the required optimal solution is at the mid-point of the line joining two points
the optimal solution occurs at every point on the line joining these two points