Final answer:
In MATLAB, 'n = n + 2' will increase 'n' by 2. In C++, both 'n = n + 2' and 'n += 2' are correct statements that will increase 'n' by 2. The '+=' operator is not valid in MATLAB, and '=+' is not valid in C++.
Step-by-step explanation:
To determine which statements in MATLAB and C++ will increase the value of a variable n by 2, we should look at valid syntax and operations in these programming languages.
MATLAB:
- n = n + 2: This statement will increase n by 2. It assigns the value of n plus 2 back to n.
- n += 2: This is not a valid operation in MATLAB. In MATLAB, the += operator does not exist, so this will return an error.
- n =+ 2: This statement is incorrect and a potential typographical error. The correct syntax would be n = n + 2.
C++:
- n = n + 2: This statement will also increase n by 2 in C++. It assigns the sum back to the variable n.
- n += 2: The += operator is a compound assignment that adds the value 2 to n and assigns the result back to n.
- n =+ 2: This is not valid C++ syntax for incrementing the value. It is likely a typo or misunderstanding of the += operator.