1.

Consider the equation tan^(2)(cos sqrt(4pi^(2)-x^(2)))-4a tan (cos sqrt(4pi^(2)-x^(2)))+2+2a=0,a being a parameter. (Given tan1=1.56) If a=1/2 then the number of distinct real roots of the equation is

Answer»

0
1
2
infinite

Answer :C


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