Which value of t makes the two matrices inverses of each other?

Solution. Multiply A B \displaystyle AB AB and B A \displaystyle BA BA. If both products equal the identity, then the two matrices are inverses of each other.

answer ^^

question: Royston’s car had gallons of gas at the start of the trip. During the trip, he stopped at a gas station and refueled the car with gallons. If the car consumed gallons of gas during the trip, there are still *blank* gallons of gas remaining in the tank.?

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