`-A`
`4A`
`8A`
`16A`
`24`
`24^2`
`24^3`
`8^2`
`2^4`
`2^9`
`1`
`2^(19)`
`[ (0, i),(i,0) ]`
`[ (0, -i),(- i, 0) ]`
`[ (0, 1),(1 , 0) ]`
None of these
Only I
Only II
Both I and II
Neither I nor II
Only I
Only II
Both I and II
Neither I nor II
`f(-x)`
`- f(x)`
`- f (- x)`
`f(x)`
`- (3A^2 + 2A + 5)`
`3A^2 + 2A + 5l`
`3A^2 - 2A - 5l`
`- (3A^2 + 2A + 5l)`
`a= 1, b = 1`
`a = cos 2 theta, b = sin 2 theta`
`a = sin 2 theta, b = cos 2 theta`
None of these
`S = {0, 2, 3}`
`S = {-1, 2, 3}`
`S = {1, 2, 3}`
`S = {2, 3}`
There exist more than one but finite number of B's such that AB = BA
There exist exactly one B such that AB = BA
There exist infinitely many B's such that AB = BA
There cannot exist any B such that AB = BA