Iiaul la ad 1s ad 18 a 4ka sa zxi mai 33. if the matrix ab= 0, then 1. a= 0 or b= 0 2. a-0 and b=0 3. it is not necessary that either a or b should be zero 4. a

IiaUL LA AD 1S AD 18 a 4Ka Sa Zxi mai 33. If the matrix AB= 0, then 1. A= 0 or B= 0 2. A-0 and B=0 3. It is not necessary that either A or B should be zero 4. all the above conditions are wrong