clgnwekgklqwejg3184 clgnwekgklqwejg3184 01-06-2023 Mathematics contestada Please and Thank you 1 Let a, = and b = n²-4 n² Calculate the following limit. an lim --00 bn (Give an exact answer. Use symbolic notation and fractions where needed. Enter DNE if the limit does not exist.) 0₂ lim - b