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Mathematics
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10 June, 23:35
Find the square root of 7-2√5
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Kassidy Rojas
10 June, 23:48
0
Answer:√5 - √2
Step-by-step explanation:
= √ (5 + 2 - 2√10)
= √{ (√5) ² + (√2) ² - 2.√5.√2}
= √ (√5 - √2) ² (by identity a² + b² - 2ab = (a-b) ²)
= √5 - √2
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Malik Chan
11 June, 00:04
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5√5 = 11.8033989 or - 2√5+7
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