InterviewSolution
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Find the square root of the surd 12 + 6√3.1). (3 - √3)2). (3 + 3√3)3). (3 - 3√3)4). (3√3) |
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Answer» FORMULA: (a + b)2 = a2 + b2 + 2ab The given surd is: 12 + 6√3 Let us write the surd as (a + √b)2 Expansion of (a + √b)2 is given as: (a + √b)2 = a2 + b + 2a√b----------(1) By comparing 2a√b TERM of this EQUATION with that of the given surd, we get a = 3 and b = √3 So, we can write the given expression as: (3 + √3)2 Thus the square root of the given surd is: (3 + √3) |
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