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Question

If the 6th term in the expansion of [1x8/3+x2log10x]8 is 5600 , then x =

A
10
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B
8
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C
11
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D
9
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Solution

The correct option is A 10
From given, we have,

6th term =8C5x83×3(x2logx)5

8×7×63×2×x8×x10(logx)5=5600

x2(log10x)5=100

x=10

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