Question: Task 1: Use The Expression Trees To Build A Calculator. The User Should Enter The Expression In Infix Notation. The Calculator Should Support The Following:

Task 1: Use The Expression Trees To Build A Calculator. The User Should Enter The Expression In Infix Notation. The Calculator Should Support The Following: 1- Construct Expression Tree From Infix Expression. 2- Print Expression Using Infix Notation. 3- Print Expression Using Postfix Notation. 4- Print Expression Using Prefix Notation. 5- Evaluate

Task 1: Use the expression trees to build a calculator. The user should enter the expression in infix notation.

The calculator should support the following: 1- Construct expression tree from infix expression. 2- Print expression using infix notation. 3- Print expression using postfix notation. 4- Print expression

using prefix notation. 5- Evaluate expression, assume that all the operands are numbers Task 2: The online store system should enable the user to add a new product to the store, and view the products in the store.

The online store system should enable the user to add a new product to the store, and view the products in the store. The store items should have the following information: id type brand price

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1. If X and Y are both discrete, show that x pX|Y(x|y) = 1 for all y such that pY(y) > 0.

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