Math, asked by jensel1106, 15 hours ago

please anyone answer as fast as you can.

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Answered by mndlmank

0

Answer:

1 ) R:A→B

then R is a subset A×B

∴ R⊆A×B

2) x² -25 = 0

x² = 25

√x² = ±√25

x = ±5 (answer

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