(√2+2)² please solve this questions
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1
Answer:
4+8√2 is the answer okay
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Answer:
Given ( √2 + 2 )²
= (√2)²+2×√2×2 + 2² ( By algebraic identity )
=( x - y )² = x² - 2xy + y²
= 2 - 4√2 + 4
= 6 - 4√2
( √2 - 2 )² is an irrational number
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