Messages

1

Test 1 / spring 2020 test main sitting question 2

« on: October 13, 2020, 05:00:33 PM »

On page 2 of the spring 2020 tests solutions, there is the following question and solution and associated solution. How do we find the limit of n(n^2+1)^2/3(n+1)((n+1)^2 + 1)^2

2

Test 1 / Re: 2018 test 1 variant C 2b

« on: October 13, 2020, 01:37:31 PM »

Thx, but I meant in the very first post with a screenshot of the official solution it has 1/2n(2n+1),so I was just confused as to which one was the correct answer.

3

Test 1 / Re: 2018 test 1 variant C 2b

« on: October 13, 2020, 12:27:23 PM »

Shouldn't it be 2n(n+1) in the denominator, not 2(n+1)?

4

Test 1 / Re: 2018 test 1 variant C 2b

« on: October 13, 2020, 11:34:38 AM »

Don't we need to have 1/2n(2n+1) not 1/(2n+2)(2n+1) ?