Binomial TheoremHard

Question

If the 6th term in the expansion of is 5600, then x =

Options

A.10
B.8
C.11
D.9

Solution

T6 = 8C5 (x2 log10 x)5 = 5600
⇒ x10 (log10 x)5 = 100     
⇒ x = 10

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