For \(x⩾0\), the least value of \(K\) for which \({4}^{1+x}+{4}^{1-x},\frac{K}{2},{16}^{x}+{16}^{-x}\text{ }\) are three…

For \(x⩾0\), the least value of \(K\) for which \({4}^{1+x}+{4}^{1-x},\frac{K}{2},{16}^{x}+{16}^{-x}\text{ }\) are three consecutive terms of an A.P., is equal to:

[JEE Main 2024, 5 Apr (Shift 2)]