Binomial Expansion - Teachnet UK-home

Example 1. Expand in ascending powers of x, up to and including the term in x2. State the set of values for which the expansion is valid. The following expansion was used in C2 to write binomial expansions, unfortunately we have a negative, fractional power. Therefore we have to use the following one instead. Therefore: = For the expansion to be valid the modulus of the ax term in the bracket ... ................
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