在三角形ABC中,若角B=1/2(角A+角C),且sina*sinc=cos^2B,s三角形ABC=4倍根号3,求三边长a、b、c如题!
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![在三角形ABC中,若角B=1/2(角A+角C),且sina*sinc=cos^2B,s三角形ABC=4倍根号3,求三边长a、b、c如题!](/uploads/image/z/3741102-54-2.jpg?t=%E5%9C%A8%E4%B8%89%E8%A7%92%E5%BD%A2ABC%E4%B8%AD%2C%E8%8B%A5%E8%A7%92B%3D1%2F2%28%E8%A7%92A%2B%E8%A7%92C%29%2C%E4%B8%94sina%2Asinc%3Dcos%5E2B%2Cs%E4%B8%89%E8%A7%92%E5%BD%A2ABC%3D4%E5%80%8D%E6%A0%B9%E5%8F%B73%2C%E6%B1%82%E4%B8%89%E8%BE%B9%E9%95%BFa%E3%80%81b%E3%80%81c%E5%A6%82%E9%A2%98%21)
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