See Han Xu Guang's answer to Hew Yuen's Junior College 1 H2 Maths question

Han Xu Guang's answer to Hew Yuen's Junior College 1 H2 Maths question.

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Date Posted: 7 years ago

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Han Xu Guang

Han Xu Guang

7 years ago

please ignore the formula with the star. i think its wrong

Han Xu Guang

Han Xu Guang

7 years ago

it should be ar^(n-1), not ar^n. my mistake.