1.化简:⑴【Cos(x—π) tan(x—2π) tan(2π—x)】/【sin(π+x)】⑵((sin^2 )(—x))—tan(360°—x) *tan(—x)—sin(180°—x) cos(360°—x) tan(180°+x)2.求三角函数值:⑴sin(—(43π)/6)⑵cos(—(83π)/6)⑶tan(—(41π)
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![1.化简:⑴【Cos(x—π) tan(x—2π) tan(2π—x)】/【sin(π+x)】⑵((sin^2 )(—x))—tan(360°—x) *tan(—x)—sin(180°—x) cos(360°—x) tan(180°+x)2.求三角函数值:⑴sin(—(43π)/6)⑵cos(—(83π)/6)⑶tan(—(41π)](/uploads/image/z/6831013-13-3.jpg?t=1.%E5%8C%96%E7%AE%80%EF%BC%9A%E2%91%B4%E3%80%90Cos%28x%E2%80%94%CF%80%29+tan%28x%E2%80%942%CF%80%29+tan%282%CF%80%E2%80%94x%29%E3%80%91%2F%E3%80%90sin%28%CF%80%2Bx%29%E3%80%91%E2%91%B5%28%28sin%5E2+%29%28%E2%80%94x%29%29%E2%80%94tan%28360%C2%B0%E2%80%94x%29+%2Atan%28%E2%80%94x%29%E2%80%94sin%28180%C2%B0%E2%80%94x%29+cos%28360%C2%B0%E2%80%94x%29+tan%28180%C2%B0%2Bx%292.%E6%B1%82%E4%B8%89%E8%A7%92%E5%87%BD%E6%95%B0%E5%80%BC%EF%BC%9A%E2%91%B4sin%28%E2%80%94%EF%BC%8843%CF%80%EF%BC%89%2F6%29%E2%91%B5cos%28%E2%80%94%2883%CF%80%29%2F6%29%E2%91%B6tan%28%E2%80%94%EF%BC%8841%CF%80%EF%BC%89)
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