AC Lim's answer to rick's Secondary 1 Maths Singapore question.
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Hope this helps
Date Posted:
8 months ago
ohh so we must alws make sure one of tje numbers has a cube root isit?
In fact all the prime product with index notation of multiple of 3 for perfect cube.
Let say for 3024 is perfect cube.
3024 = 2⁴ x 3³ x 7
So, 3024 / k = 2⁴ x 3³ x 7 / 2 x 7
To be 2³ x 3³, so k=2x7 = 14
Let say for 3024 is perfect cube.
3024 = 2⁴ x 3³ x 7
So, 3024 / k = 2⁴ x 3³ x 7 / 2 x 7
To be 2³ x 3³, so k=2x7 = 14
ohhh noted w thnks !!
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