Eric Nicholas K's answer to Kathy's Secondary 4 A Maths Singapore question.
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Let's say a = 6, b = 8.
Then a - b = -2 and modulus of -2 is 2.
Similarly, b - a = 2 and modulus of 2 is 2.
So modulus of a - b in this case equals 2, which is basically b - a (swapping the order after removing the modulus)
Similarly, modulus of b - a in this case equals 2, which is basically b - a (just remove the modulus)
Then a - b = -2 and modulus of -2 is 2.
Similarly, b - a = 2 and modulus of 2 is 2.
So modulus of a - b in this case equals 2, which is basically b - a (swapping the order after removing the modulus)
Similarly, modulus of b - a in this case equals 2, which is basically b - a (just remove the modulus)
Date Posted:
5 years ago
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