The correct option is A ∣∣∣3231∣∣∣
A+2B=∣∣∣5540∣∣∣
Multiplying both sides by 2 we get
2A+4B=∣∣∣101080∣∣∣....(1)
And 2A-B=∣∣∣0−535∣∣∣....(2)
Subtracting (2) from (1) we get
5B=∣∣∣10155−5∣∣∣
∴B=∣∣∣231−1∣∣∣
From (1),
A=∣∣∣5540∣∣∣−∣∣∣462−2∣∣∣=∣∣∣1−122∣∣∣
∴A+B=∣∣∣3231∣∣∣