Question

If Y is a whole number and Y×Y=Y, then what is Y.​

Answer 1

Answer:

It would be whole number may 1 or 0.

Answer 2

Answer:

Y×Y=Y

➙ Y² = Y

➙ Y² - Y = 0

➙ Y ( Y - 1 ) = 0

So Y = 0 OR Y = 1

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