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If sin (A+B) =sin Acos B+cosA sinB and cos (A-B) = cosA cosB+sinA sinB . Find the value of (1)sin 70⁰(2)cos 15⁰ |
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Answer» ong>Step-by-step EXPLANATION: this is the WAY to SOLVE this. and I think the IST PART is sin75 not sin70. |
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