For the BigRational class, add an additional constructor that takes two BigIntegers as parameters, making sure to throw any appropriate exceptions. Modify the BigRational class so that 0/0 is legal...

For the BigRational class, add an additional constructor that takes two BigIntegers as parameters, making sure to throw any appropriate exceptions. Modify the BigRational class so that 0/0 is legal and is interpreted as “Indeterminate” by toString.