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secondary 3 | A Maths
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Ricky
Ricky

secondary 3 chevron_right A Maths chevron_right Singapore

Help me please

Date Posted: 1 year ago
Views: 137
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Arnold K H Tan
Arnold K H Tan's answer
2090 answers (A Helpful Person)
1st
AT
Ricky
Ricky
1 year ago
Thanks
Ricky
Ricky
1 year ago
Yr worked solution differs from given answer. Given answer is (i) 1.5(7x3^1.5 + 12). & (ii) 2x3^1.5 - 1
Eric Nicholas K
Eric Nicholas K
1 year ago
It’s just a slight error in Arnold’s workings for part i, where 4 + 2 sqrt 3 + 2 sqrt 3 + 3 will actually become 7 + 4 sqrt 3.

Workings are otherwise good.
Arnold K H Tan
Arnold K H Tan
1 year ago
Whoops.. thnx for the vetting and comments.

Happy new year!