Which of the following is NOT a valid postfix expression?

a) a b c – d
b) a b – c d + –
c) a b c + /
d) a b c + d


D

Computer Science & Information Technology

You might also like to view...

When you receive a compressed folder, you have to undress it to extract the files and folders it contains, reconstituting them to their original state.

Answer the following statement true (T) or false (F)

Computer Science & Information Technology

Identify the six subsystems of a structured cabling system.

What will be an ideal response?

Computer Science & Information Technology

Covered entities (CEs) include which of the following?

A) Health-care providers B) Health plans C) Health-care clearinghouses D) All of the above

Computer Science & Information Technology

A(n) ____________________ is a combination of letters, numbers, and symbols that verifies your identity.

Fill in the blank(s) with the appropriate word(s).

Computer Science & Information Technology