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Grade 11Trigonometry

Cos 2 theta into cos theta by 2 minus Cos 3 theta into cos 9 theta by 2 is equal to sin 5 theta into sin 5 theta by 2

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8 Years agoGrade 11
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1 Answer

Profile image of Deepak Kumar Shringi
8 Years ago
this question is not understandable please click a pic then upload it...it will be better

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