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secondary 3 | A Maths
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Amanda
Amanda

secondary 3 chevron_right A Maths chevron_right Singapore

please help! thanks in advance:)

Date Posted: 4 years ago
Views: 204
Eric Nicholas K
Eric Nicholas K
4 years ago
Will look at this by 4 am if no one else has done them yet and I can still remember.

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Muhammad
Muhammad's answer
356 answers (Tutor Details)
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Hope this helps:)
Amanda
Amanda
4 years ago
can you explain how you manage to get 8Cr4 to get 70h^4
Muhammad
Muhammad
4 years ago
I derived r = 4 on the right side working
8 choose 4 is 70
Hope this explains it :)