Answer:
Step-by-step explanation:
Given: , ,
Find:
Formula:
Solution:
#CarryOnLearning
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Verified answer
Answer:
There should be 5 terms to sum up to 50.
Step-by-step explanation:
Given:
,
, ![S_n=50 S_n=50](https://tex.z-dn.net/?f=S_n%3D50)
Find:![n=? n=?](https://tex.z-dn.net/?f=n%3D%3F)
Formula:![S_n=\frac{n}{2}(a_n+a_1) S_n=\frac{n}{2}(a_n+a_1)](https://tex.z-dn.net/?f=S_n%3D%5Cfrac%7Bn%7D%7B2%7D%28a_n%2Ba_1%29)
Solution:
#CarryOnLearning