Consider A and B two square matrices of same order. Select the correct alternative.
If AB = 0, either A or B must be zero matrix
Function f : N N, f(x) = 2x + 3 is
many-one onto function
many-one into function
one-one onto function
one-one into function
D.
one-one into function
It is not onto function, because for y = 3, x = 0 N.
Hence, it is one-one into function
A point particle moves along a straight line such that x = , where t is time. Then, ratio of acceleration to cube of the velocity is
- 1
- 0.5
- 3
- 2