Let the equations of two adjacent sides of a parallelogram ABCD be and . \text{If the equation of its one diagonal AC is \text{ and the distance of A from the other diagonal is , then is equal to:
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Let the equations of two adjacent sides of a parallelogram ABCD be and . \text{If the equation of its one diagonal AC is \text{ and the distance of A from the other diagonal is , then is equal to:
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