Which of the following is not a valid postfix expression? A. 5 4 + B. 6 5 4 + - C. 4 + 5 D. 8 2 + 2 / E. all of the above are valid postfix expressions
Question
Which of the following is not a valid postfix expression? A. 5 4 + B. 6 5 4 + - C. 4 + 5 D. 8 2 + 2 / E. all of the above are valid postfix expressions
Solution
The option C. 4 + 5 is not a valid postfix expression. In postfix notation, operators are placed after the operands. So, the correct postfix notation for this expression would be 4 5 +.
Similar Questions
The postfix expression 5 3 * 2 5 + - 4 * 2 / evaluates to 16 A. True B. False
7. What is the value of the postfix expression 6 3 2 4 + – *?a) 74b) -18c) 22d) 40
What is the result of evaluating the following postfix expression: 4 8 + 2 * A. 40 B. 24 C. 64 D. 20 E. none of the above are correct
Which of the following is an example of Postfix expression?a.AB C ^ / D E * + A C * -b.*+ABCc.None of thesed.(A + B) / C
alue of the postfix expression 6 8 2 1 + – *
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.