Limit assumed to exist

Reasoning with a limit before establishing there is one. limsup is not lim.

1 wrong options in the bank

Would you have fallen for these?

Each is a real option from a previous-year paper. Read it cold and decide before opening it.

Option A
$lim sup a_{n} = 3 /2$ .
The analysis of this one comes with the PYQ pack.
Part B · december 2023

1 more of these are in the PYQ pack

Every wrong option in the paper, analysed. Not a worked solution repeated four times — the specific mistake behind each distractor.