Boy Mow Chau's answer to Rachel's Secondary 3 A Maths Singapore question.
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note that …
(1/2) = 2^(-1 )
9^y = 3^(2y)
(1/27) = 3^(-3)
change all to same base and equate exponents.
(1/2) = 2^(-1 )
9^y = 3^(2y)
(1/27) = 3^(-3)
change all to same base and equate exponents.
Date Posted:
4 years ago
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