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Question
secondary 4 | E Maths
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need help with i)
Date Posted: 1 month ago
Views: 34
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There
Date Posted:
1 month ago
how u get (-257/625)
I just typed the numbers into calculator????
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Triangle OAB is a triangle with all 3 sides known and an unknown angle to find. So u can use the cosine rule. The angle you find here is non reflex angle AOB. Subtract this angle from 2pi to find the reflex angle. Hope this helps.
Date Posted:
1 month ago
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