Although the square root of a negative number has no real value, it is not necessarily true thatequations involving imaginary numbers like these are practically inapplicable .
A) equations involving imaginary numbers likethese are practically inapplicable --> these can't refer to the singular noun 'the square root of a negative number'
B) equations involving such imaginary numbers have no practical applications -->correct
C) equations involvingthese inapplicable imaginary numbers are
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A) equations involving imaginary numbers likethese are practically inapplicable --> these can't refer to the singular noun 'the square root of a negative number'
B) equations involving such imaginary numbers have no practical applications -->correct
C) equations involvingthese inapplicable imaginary numbers are
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