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यदि `(a+1/a)^(2)=3` हो तो `a^(18)+a^(12)+a^(6)+1` का मान ज्ञात कीजिये?A. 3B. 1C. 0D. 2 |
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Answer» Correct Answer - C `(a+1/a)^(2)=3` `a+1/a=sqrt(3)` `a^(3)+1/(a^(3))=0` `a^(6)=-1` `(a^(6)+1)=0` so `a^(18)+a^(12)+a^(6)+1` `implies a^(12)(a^(6)+1)+a^(6)+1` `implies a^(12)xx0+0` `implies 0` |
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