if a - 1/a=8
find: (i) a+1/a
(ii) a2-1/a2
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Step-by-step explanation:
(1) a+1/a=8a+2/8a+1
(2) a²-1/a²=(a+1)(a-1))a²
(8a+2)(8a)/(8a+1)²
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