Question: 4 and 180 < a < 270, find cos(2a), sin(2a), and tan(3a). 3 (9pts) 15. If cot a = asn2

4 and 180 < a < 270, find cos(2a), sin(2a), and tan(3a).

4 and 180 < a < 270, find cos(2a), sin(2a), and tan(3a). 3 (9pts) 15. If cot a = asn2

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