(2-√2)×(2+√2) is a rational or irational
Answers
Answered by
0
Answer:
rational number.
Step-by-step explanation:
(2-√2)×(2+√2)
by using the property (a+b)(a-b) = a² - b²
(2)² - (√2)²
4 - 2
2
as 2 is an integer the given number is rational number.
Answered by
0
Answer:
Rational....
Step-by-step explanation:
(2-√2) × (2+√2)
= 2(2+√2) - √2(2+√2)
= 4+2√2 - 2√2-2
= 2.... answer
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