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22-05-2022
Mathematics

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Find the value of square root of 312 + square root of 135 + square root of 81.

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reinhard10158 reinhard10158

22-05-2022

Step-by-step explanation:

no calculator ?

sqrt(312) + sqrt(135) + sqrt(81) =

= sqrt(4×78) + sqrt(9×15) + 9 = 2×sqrt(78) + 3×sqrt(15) + 9 =

= 38.28247177...

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