Practice problem
You are given an arithmetic sequence a1,a2,…,a100a_1,a_2,\dots,a_{100}a1,a2,…,a100. If a55=10a_{55} = 10a55=10 and a100=100a_{100} = 100a100=100, find a1a_{1}a1.
−98-98−98
989898
222
−89-89−89
Type a concept, like “slope” or “photosynthesis”.
