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lim ( x to 2 ) ( 3 ^(x) + ...

`lim _ ( x to 2 ) ( 3 ^(x) + 3 ^( 3 - x ) - 12 ) /( 3 ^( - x//2) - 3 ^( 1 -x)) ` is equal to __________

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JEE MAINS PREVIOUS YEAR-JEE MAIN-MATHEMATICS
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