Months after its $80 million Series B fundraise, Course Hero has acquired Symbolab, an artificial intelligence-powered calculator that helps students answer and understand complex math questions. The price of the deal was undisclosed. The 9-person Symbolab team, based in Tel Aviv, will join Course Hero . The platforms will live under independent branding for the near future, according to Andrew Grauer, CEO of Course Hero. Founded in 2011, Symbolab is an advanced calculator and question solver that is on track to answer 1 billion questions this year, Grauer says. The…