If x×y=√x2+y2 the value of (1×2√2)(1−2√2) is.

1.	If x×y=√x2+y2 the value of (1×2√2)(1−2√2) is.
Answer» If $x \times y = \sqrt{x^{2} + y^{2}}$ the value of $(1 \times 2 \sqrt{2}) (1 - 2 \sqrt{2})$ is.

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