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Concept 5.5 · Check understanding

Sum of the First n Terms

Step 1 of 2

  1. Step 1
  2. Step 2
  3. Probe

In 2 + 4 + 6 + 8 + 10 + 12, the ends make 14, and so do 4 and 10. Tap one pair's total.

S₆ = ×

Tap the part you would look at.