If a and b are two negative numbers, the which of the following is not always negative
Explanation:
If a and b are always negative, then
Option (a): a + b will always be negative
Option (b): a - b may be positive or negative depending on the values of a and b.
Option (c): b - a may be positive or negative depending on the values of a and b.
Option (d): a2b3 will always be negative.
Hence, option (e).
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