Question

The square of the sum of two numbers equals the square of the difference between them. Which of the following has to be true?

A Both have to be necessarily zero Correct Answer Incorrect Answer
B At least one of them has to be necessarily zero Correct Answer Incorrect Answer
C One number has to be the negative of the other Correct Answer Incorrect Answer
D One number has to be the inverse of the other Correct Answer Incorrect Answer

Solution

The correct answer is B

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