6 Trigonometry.notebook - The Ilfracombe Academy -...
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6 Trigonometry.notebook
6 Trigonometry.notebook - The Ilfracombe Academy - …iacmaths.weebly.com/.../1/6/7/7/16775648/6_trigonometry.pdfBy expressing sin 3A as sin(2A + A), find an expression for sin 3/1