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Pleas solve all these Qu...... 1-Using C++ predefined functions, write each of the following as C++ expression. 2b+4a 1-b+ + 2b c 2-b+X+21 3. b

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1-Using C++ predefined functions, write each of the following as C++ expression. 2b+4a 1-b+ + 2b c 2-b+X+21 3. b = x + ant -b+Vb7-4ac 4- x = 2ab 2-Write the definition of a void function called Threetimesfun that takes as input an integer number and output 3 times the value of the integer number. 3-Write the definition of a void function called initialize with two reference parameters of type int and double. The function sets the values of the int and double variables to 0. 4-Write the definition of a function called PrintNaturallNumbers with two parameters (start and end) of type int. The function prints all the numbers from start to end. 5. Write a program that prompts the user to enter two numbers (n1 and n2) then swap them. Your program must have the following function: a. Swap: This function takes the reference parameters of nl and n2 and swap their values. Sample run: Enter two numbers ni and n2: 10 20 In Main function values before swapping: 10 20 In Swap Function- values before swapping: 10 20 In Swap Function values after swapping: 20 10 In Main function- values after swapping: 20 10

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