It's an interesting approach, but wouldn't it be simpler to use just the first and last terms? Given that 5/4 < S < 1/100, this implies 0.01 < S < 1.25, and the only option from the list that satisfies this condition is S < 2.
Yeah, S is a sum of all those numbers, so if the first two numbers give us 5/4, and then we're adding more positive numbers, S will be greater than 5/4.
The videos are great. I just wish you will show less of Avi's face and more of the board. Comprehension is better when one is visualizing and listening to the solution rather than looking at Avi explaining the solution.
It's an interesting approach, but wouldn't it be simpler to use just the first and last terms? Given that 5/4 < S < 1/100, this implies 0.01 < S < 1.25, and the only option from the list that satisfies this condition is S < 2.
S is not less than 5/4
Right, my bad! I thought that I could restrict it between the first and last term but I just added them an it's 1,54
Yeah, S is a sum of all those numbers, so if the first two numbers give us 5/4, and then we're adding more positive numbers, S will be greater than 5/4.
The videos are great. I just wish you will show less of Avi's face and more of the board. Comprehension is better when one is visualizing and listening to the solution rather than looking at Avi explaining the solution.
This is excellent feedback, thank you!