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