Task 9 of 20 · Math · High school . Class 2
Sum of arithmetical strings
Task
The arithmetic string a_1=4, r=3. Calculate S_20.
Your answer
Write your answer, check the solution, then rate it against the criteria.
Task 9 of 20 · Math · High school . Class 2
Task
The arithmetic string a_1=4, r=3. Calculate S_20.
Your answer
Write your answer, check the solution, then rate it against the criteria.