Find the product of (x-1/x) , (x+1/x) , (x^2+1/x^2) and (x^4+1/x^4).
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1. (x-1/x)(x+1/x)=x²-1/x²
2. (x²-1/x²)(x²+1/x²)
=(x^4-1/x^4)
3. (x^4-1/x^4)(x^4+1/x^4)=x^8-1/x^8
which is the answer
2. (x²-1/x²)(x²+1/x²)
=(x^4-1/x^4)
3. (x^4-1/x^4)(x^4+1/x^4)=x^8-1/x^8
which is the answer