Find the first three terms in these expansions in ascending powers of x a) (x+1/x)^6 b) In the expansion of (1+x/2)^n in ascending powers of x the coefficent of x^2 is 30. Find n. Thanks in advance if you can help
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Originally Posted by Confuzzled? Find the first three terms in these expansions in ascending powers of x a) (x+1/x)^6 RonL
Originally Posted by Confuzzled? b) In the expansion of (1+x/2)^n in ascending powers of x the coefficent of x^2 is 30. Find n. So the coeff of in the expansion is: , which has solutions or . I presume there is an implicit assumption that so the answer would be . RonL
Thank you so much!
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