JEE Advanced Model Paper 5 with solutions for online practice

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Question : 40 of 54
 
Marks: +1, -0
The sixth term in the expansion of
[2log2√9x−1+7+
1
2
1
5
l
o
g2
(3x−1+1)
]
7
is equal to 84. Then the number of values of xis equal to
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