Evaluate the product:(a-1/a)(a+1/a)(a^2-1/a^2) for a= -2
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Answered by
1
Answer:
minnie86123456:
Wont the minus sign cut?
Answered by
1
Step-by-step explanation:
(a^2 -1/a^2) (a^2-1/a^2)
(a^2- 1/a^2)^2
((-2)^2-(1/-2^2))^2
(4-1/4)^2
(16-1/4)^2
(15/4)^2
225/6 - ans
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