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If a=3+√8,the value of a²+1∕a² |
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Answer» Answer: Step-by-step EXPLANATION: a=3+√8
1/a =1/+3+√8) =RATIONALIZE the denominator. =3-√8/(3+√8)(3-√8) =3-√8/9-8 =3-√8 Now, a+1/a = 3+√8 +3-√8 =6 a^2+ 1/a^2=(a+1/a)^2-2 = (6)^2 -2 =36-2 34 |
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