The value of 6 + _ 3 2 ( 1 3 2 4 - 1 3 2 4 - 1 3 2 4 - 1 3 2 ) is

JEE Advanced 2012 Mathematics question

The value of is

Answer: 4

Let , so , : $ + - 4 = 0 ⇒ y = =

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Question ID VK-026060