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CBSE Class 9 Answered

If a=7-4√3,find the value of √a+1/√a
Asked by charikanitin0513 | 23 Feb, 2020, 04:50: PM
answered-by-expert Expert Answer
straight a equals 7 minus 4 square root of 3 1 over straight a equals fraction numerator 1 over denominator 7 minus 4 square root of 3 end fraction cross times fraction numerator 7 plus 4 square root of 3 over denominator 7 plus 4 square root of 3 end fraction 1 over straight a equals 7 plus 4 square root of 3 open parentheses square root of straight a plus fraction numerator 1 over denominator square root of straight a end fraction close parentheses squared equals straight a plus 1 over straight a plus 2 open parentheses square root of straight a plus fraction numerator 1 over denominator square root of straight a end fraction close parentheses squared equals 16 square root of straight a plus fraction numerator 1 over denominator square root of straight a end fraction equals 4
Answered by Arun | 23 Feb, 2020, 09:56: PM

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CBSE 9 - Maths
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