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secondary 3 | A Maths
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Hi, need help with example 16 and try 16. Thanks in advance :)
Date Posted: 3 years ago
Views: 388
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i hope this solutions help you!
Date Posted:
3 years ago
Thank you for your help but I don't understand why 1/2 (1+cos210) change into 1/2(1 -cos 30). Could you explain to me. Thks
^^For try 6 part (ii)
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Date Posted:
3 years ago
Thank you for your help but I don't understand how cos 210 become -cos 30
^^For try 6 part (ii)
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