1.

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

Answer»

If sin1(xx22+x34)+cos1(x2x42+x64)=π2 for 0 < 1x < 2, then x equals




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