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Sagot :
Answer:
It can't be anything other that a maybe the question is wrong ask a tutor
have a nice day
Step-by-step explanation:
Answer:
√a² = |a|
Step-by-step explanation:
√a² = |a| not a
because the amount of "a" can be negative and when it reaches power 2 the minuse sign converts to plus sign , so we must use absolute value : |a| . notice that the answer never can be negative.
example:
a = -2
√(-2)² = √+4 = |-2| = 2 -2
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