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Let S be the set of all real roots of the equation, 3^x(3^x – 1) + 2 = |3^x – 1| + |3^x – 2|. Then S :

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Let S be the set of all real roots of the equation, 3x(3x – 1) + 2 = |3x – 1| + |3x – 2|. Then S : 

(1) is an empty set. 

(2) contains at least four elements. 

(3) contains exactly two elements. 

(4) is a singleton.

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Answer is (4) is a singleton.

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Answer is (4)  is a singleton

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