Question: 1. (16 points) Using the data displayed on the next page, display the results of the following relational algebra expressions. Let unary operations have higher


1. (16 points) Using the data displayed on the next page, display the results of the following relational algebra expressions. Let unary operations have higher precedence than binary ones. Remember, a relation should not contain duplicate rows. 1.1 IIproductId, hours (Ohours > 100 (permissions)) type G count(userid)(users) 1.2 system G sum(cost), min(name), avg(rating), count(rating), count-distinct(rating)(products) 1.3 productId(Ohours
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