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secondary 3 A Maths Singapore

Ans is r=3, n=18 pls help

Date Posted: 3 years ago

Snell

3 years ago

r - 1 = 2
r = 3

12 - 2r - 2 = 4
3^4 = 81

3x2x81/27 = 18 = n

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Vignesh Anand

3 years ago

Thanks a lot

done {{ upvoteCount }} Upvotes

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Date Posted: 3 years ago

Vignesh Anand

3 years ago

Thanks a lot..