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Question
Expand : `("a"+1/"a")^3`
Sum
Solution
`("a"+1/"a")^3`
`="a"^3+(1/"a")^3+3xx"a"xx1/"a"xx("a"+1/"a")`
`="a"^3+1/"a"^3+3("a"+1/"a")`
`="a"^3+1/"a"^3+3"a"+3/"a"`
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Cubes of Binomials
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