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Total number of terms in the expansion of (x 2 +1+1/x 2 ) ihow much ? and is that 2n+n1 right if please expalin it
lowest power would be = x –nhighest power would be = xnsince it has continuous power of x (– 1, 0, 1)expansion will have all the powers from ranging –n to n.hence there will be (2n+1) terms
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