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What is the second term in the binomial expansion of (2r-3s)^12

What is the second term in the binomial expansion of (2r-3s)^12
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What is the second term in the binomial expansion of (2r-3s)^12

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User Joyful
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2 Answers

7 votes
(a-b)¹²=a¹²-12a¹¹b+...

Let a=2r and b=3s then the second term is -12(2r)¹¹(3s)=-73728r¹¹s.
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User JJ Zabkar
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4 votes

Answer: A. –73,728r^11s

Just took the test on edge, this is correct :)

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User Askaale
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