The operation @ is defined for all integers x and y as x @ y=xy-y. If x and y are positive integers, which of the following cannot be Zero?

The operation @ is defined for all integers x and y as x @ y=xy-y. If x and y are positive integers, which of the following cannot be Zero? Correct Answer (x+1)@y

সর্বশেষ মিউনিখ নিরাপত্তা সম্মেলন ফেব্রুয়ারি, 2019 অনুষ্ঠিত হয়েছে।
Bissoy MCQ

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