What is the sum of the following sequence:
Σk(k+1) for k=1...n
for different n?
Additional test cases have been added.
Times 2 - START HERE
What is the distance from point P(x,y) to the line Ax + By + C = 0?
Multiply 2 numbers
Area of a disk
Sum of series IV
Sum of series I
Sum of series VI
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