Question

(a+ 1/a )(a-1/a)(a2+1/a2)(a4+1/a4)
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Answer 1

Answer:

= (1 - 1/a^8)

Step-by-step explanation:

Refer to attached file for explanation.

Hope this answer helps you ^_^ !

Answer 2

1 - 1/a^8 is your answer......