Review the diagram of the unit circle.
A unit circle. Point P is on the circle on the x-axis at (1, 0). Point S is in quadrant 4 on (cosine (negative v), sine (negative v) ). Point Q is in quadrant 1 above point P at (cosine (u), sine (u) ). Point R is above point Q at (cosine (u + v), sine (u + v).
Based on the diagram, which equation can be simplified to derive the cosine sum identity?Review the diagram of the unit circle.
A unit circle. Point P is on the circle on the x-axis at (1, 0). Point S is in quadrant 4 on (cosine (negative v), sine (negative v) ). Point Q is in quadrant 1 above point P at (cosine (u), sine (u) ). Point R is above point Q at (cosine (u + v), sine (u + v).
Based on the diagram, which equation can be simplified to derive the cosine sum identity?
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Answer:C
Step-by-step explanation: EDGE 2022
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