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Find the coefficient of x^4 in the expansion of (1 + 2x + 3x^3)^10?
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Mar 14, 2018
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Find the coefficient of x^4 in the expansion of (1 + 2x + 3x^3)^10?
Mathematics
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Kanwarpreet Singh
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Kanwarpreet Singh
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The only possible configurations of terms that contribute to generating the
term in the expansion are given by the multinomial theorem to be
where
Simplifying a bit gives a coefficient of
Younes LAB
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Mar 18, 2018
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Younes LAB
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