( root2 + 1) ( root2 - 1)= a)1 b)root2 c)-1 d) root2+1
plz from following options choose the correct one
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Answer:
(√2+1)(√2-1)
It is of the form a²-b² = (a+b)(a-b)
=> (√2)² - (1)²
=> 2 -1
=> 1 <=
hope it helps you
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