Question: Design BNF and draw a Parse Tree: Design BNF for expressions using binary + - * /, unary -, and (), with + and -

Design BNF and draw a Parse Tree:

Design BNF for expressions using binary + - * /, unary -, and (), with + and - having higher precedence than * /, the other precedence as in algebra. Unary - associates. + and - associate right to left, while * and / associate left to right.

Using the above, draw a parse tree for x + y / x - 3 * x. Then give the result, using th tree, when x = 1 and y = 3

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