he sequence of real number (xn) is defined by x_1 \equal{} 0, x_2 \equal{} 2 and x_{n\plus{}2} \equal{} 2^{\minus{}x_n} \plus{} \frac{1}{2} \forall n \equal{} 1,2,3 \ldots Prove that the sequence has a limit as n approaches \plus{}\infty. Determine the limit. limitalgebra unsolvedalgebra