If a²-5a-1=0 and a≠0; find a²-1/a² – InterviewSolution

1.

If a²-5a-1=0 and a≠0; find a²-1/a²

Answer»

Step-by-step EXPLANATION:

a^2=1+5a

a^2=6a

a^2/a=6

a=6

a^2-1/a^2

6^2-1/6^2

36-1/36

35/36

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