If tanθ = t and θ≠ 45°, use trigonometic identities to express
(4sinθcosθ-4sinθsinθ)/(cosθcosθ-sinθsinθ)
跪求step~~!
Math problem數學---trigonometic
2013-05-29 6:53 am
回答 (1)
2013-05-29 8:32 am
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參考: pingshek
收錄日期: 2021-04-30 17:51:27
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