Find the coefficient of x12 in the power series of each ofthese functions.a) 1∕(1 + 3x) b) 1∕(1 − 2x)2c) 1∕(1 + x)8 d) 1∕(1 − 4x)3e) x3∕(1 + 4x)2

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Q: Consider the series n=1 (2x)n n2

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Q: 3. Write the first four terms of the expansion of the following functions In (1-2r) (b) 1+

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