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If a not equal to 0,and a-1/a=3,find a2+1/a2 |
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Answer» Answer: a2+1/a2=6 Step-by-step EXPLANATION: and) a=3 a2+1/a2=? (a-b) 2 =a2+ B2- 2ab so.,(a-1/a) 2=a2+1 /and 2×a1/a a2+1/a-2 (a-1/a) 2=a2+1/a2-a (3)2=a2+1/a2-2 9-2 =a2+1/a2 answer= a2+ 1/a2=6 |
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