Question

.If a = 3 + √8, then find the value of a-1/a

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Answer 1

Answer:

2√8

Step-by-step explanation:

a = 3+√8

1/a = 1/ 3+√8 = 3-√8/1 = 3-√8

a - 1/a = 3+√8-3+√8

a - 1/a = 2√8

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Answer 2

Step-by-step explanation:

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