Math, asked by ortegakhener, 6 hours ago

Activity 3 - Solve for the value of n. Use the formula: Sn = "(a1 + an) . 1. Sn = 2 805 a1 = 21, an = 166, ​

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Answered by advlog388
0

Answer:

sorry l am week in maths

l will tell my friends

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