Mark each statement True or False. Justify each answer. (a) If (sn) and (t„) are convergent sequences with s, → s and t, → t, then lim (s, + t„) = s +t and lim (s,t,,) = st. (b) If (sn) converges to s and s, > 0 for all n e N, then s > 0. (c) The sequence (s„) converges to s iff lim s, = s. (d) lim s, = +o iff lim (1/s,) = 0.

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