1.

The solution set of the inequality (cot−1x)(tan−1x)+(2−π2)cot−1x−3tan−1x−3(2−π2)>0, is

Answer»

The solution set of the inequality (cot−1x)(tan−1x)+(2−π2)cot−1x−3tan−1x−3(2−π2)>0, is



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