Show Londa the steps she could take to get
What steps do you think Londa took to get
as a result?
Look at the negative signs.
What does she need to consider to avoid making this mistake in the future?
Convert to imaginary form before completing operations.
Londa's example means that it is not always true that
for real numbers and . What restriction needs to be placed on the numbers and ?
They must be non-negative real numbers.