{"id":14490,"date":"2020-12-11T07:31:09","date_gmt":"2020-12-11T02:01:09","guid":{"rendered":"https:\/\/cbselibrary.com\/?p=14490"},"modified":"2020-12-11T09:20:31","modified_gmt":"2020-12-11T03:50:31","slug":"binomial-theorem-index","status":"publish","type":"post","link":"https:\/\/cbselibrary.com\/binomial-theorem-index\/","title":{"rendered":"Binomial Theorem for any Index"},"content":{"rendered":"
https:\/\/www.youtube.com\/watch?v=xMziTBR34_M<\/p>\n
The rule by which any power of binomial can be expanded is called the binomial theorem.
\nIf n is a positive integer and x, y \u2208\u00a0C then
\n<\/p>\n
Statement :<\/strong> <\/p>\n <\/p>\n We have, (1) If consecutive coefficients are given:<\/strong> In this case divide consecutive coefficients pair wise. We get equations and then solve them. (1) Pascal’s Triangle<\/strong> (2)<\/strong> Method for finding terms free from radicals or rational terms in the expansion of (a1\/p<\/sup> + b1\/q<\/sup>)N<\/sup> <\/strong>\u2200 a, b \u2208 prime numbers:<\/strong> Binomial Theorem for any Index https:\/\/www.youtube.com\/watch?v=xMziTBR34_M Binomial theorem for positive integral index The rule by which any power of binomial can be expanded is called the binomial theorem. If n is a positive integer and x, y \u2208\u00a0C then Binomial theorem for any Index Statement : when n is a negative integer or a fraction, … Read more<\/a><\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"spay_email":""},"categories":[5],"tags":[5572,5571,5575,5573,5574],"yoast_head":"\n
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\nwhen n is a negative integer or a fraction, where , otherwise expansion will not be possible.
\nIf first term is not 1, then make first term unity in the following way,
\n<\/p>\nGeneral term :<\/strong><\/h3>\n
Some important expansions<\/h3>\n
Problems on approximation by the binomial theorem :<\/h3>\n
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\nIf x<\/em> is small compared with 1, we find that the values of x2<\/sup>, x3<\/sup>, x4<\/sup>, \u2026.. become smaller and smaller.
\n\u2234 The terms in the above expansion become smaller and smaller. If x<\/em> is very small compared with 1, we might take 1 as a first approximation to the value of (1 + x)n<\/sup> or (1 + nx) as a second approximation.<\/p>\nThree \/ Four consecutive terms or Coefficients<\/h3>\n
\n<\/p>\nSome important points<\/h3>\n
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\nPascal’s triangle gives the direct binomial coefficients.
\nExample :<\/em> (x + y)4<\/sup> = x4<\/sup> + 4x3<\/sup>y + 6x2<\/sup>y2<\/sup> + 4xy3<\/sup> + y4<\/sup>.<\/p>\n
\nFind the general term
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\nPutting the values of 0 \u2264 r \u2264 N, when indices of a and b are integers.
\nNumber of irrational terms = Total terms \u2013 Number of rational terms.<\/p>\n","protected":false},"excerpt":{"rendered":"