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Expand (i) (x+1/x)^(7) , (ii) (x^(2)+2/x...

Expand (i) `(x+1/x)^(7)` , (ii) `(x^(2)+2/x)^(4)` using binomial theorem.

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The correct Answer is:
(i) `x^(7)+7x^(5)+21x^(3)+35x+(35)/(x)+(21)/(x^(3))+(7)/(x^(5))+(1)/(x^(7))`
(ii) `x^(8)+8x^(5)+24x^(2)+(32)/(x)+(16)/(x^(4))`
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