Mathematics
For \(x \geq 0\), the least value of \(K\), for which \(4^{1 + x} +\)
\(4^{1 - x},\frac{K}{2},16^{x} + 16^{- x}\) are three consecutive
terms of an A.P., is equal to
A
4
B
10
C
8
D
16
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