Find the value of root of (27 - 10*root 2)
Answers
Answered by
9
√(27 - 10√2) = 5 - √2
Step-by-step explanation:
√(27 - 10√2)
= √(25 + 2 - 5√2 - 5√2)
= √(25 - 5√2 - 5√2 + 2 )
= √(5(5 - √2) - √2(5 - √2) )
= √(5 - √2)(5 - √2)
= √(5 - √2)²
= 5 - √2
√(27 - 10√2) = 5 - √2
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Answered by
1
Answer:
5-√2
Step-by-step explanation:
√27-10√2
√25+2-10√2
√25-10√2+2
√25-5√2-5√2+2
√5(5-√2)-√2(5-√2)
√(5-√2)(5-√2)
√(5-√2)^2
answer=5-√2
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