Question

which type of sentence is this? albert einstein was best known as a brilliant physicist and the developer of the theory of relativity, but he was also an accomplished violinist. simple compound complex compound-complex

Explanation:

A compound sentence connects two independent clauses (complete thoughts) with a coordinating conjunction like "but". The given sentence has two independent clauses: "Albert Einstein was best known as a brilliant physicist and the developer of the theory of relativity" and "he was also an accomplished violinist", joined by "but".

Answer:

compound