Aʙᴏᴜᴛ Tʜɪs Vɪᴅᴇᴏ – This video looks at how to find the sum of geometric series using both the sum feature on the Casio Classwiz fx-991EX and the sum formula. You can use the fx-991EX and the equation for the nth term with the sum feature to find the sum of the series to a particular number of terms. You can also check use of the sum formula using the same method.
from The Calculator Guide : Mathematics Help – Casio Skills – Education Technology http://bit.ly/2GqLoay
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