1.

If sin−1(x−x22+x34−⋯)+cos−1(x2−x42+x64−⋯)=π2 for 0<x<√2, then the value of x is

Answer»

If sin−1(x−x22+x34−⋯)+cos−1(x2−x42+x64−⋯)=π2 for 0<x<√2, then the value of x is



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