观察杨辉三角,回答:图中a=?请用你发现的规律写出完整的第八行为_11 11 2 11 3 3 11 4 6 4 11 5 10 10 5 11 6 15 a 15 6 1
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![观察杨辉三角,回答:图中a=?请用你发现的规律写出完整的第八行为_11 11 2 11 3 3 11 4 6 4 11 5 10 10 5 11 6 15 a 15 6 1](/uploads/image/z/4872656-56-6.jpg?t=%E8%A7%82%E5%AF%9F%E6%9D%A8%E8%BE%89%E4%B8%89%E8%A7%92%2C%E5%9B%9E%E7%AD%94%EF%BC%9A%E5%9B%BE%E4%B8%ADa%EF%BC%9D%3F%E8%AF%B7%E7%94%A8%E4%BD%A0%E5%8F%91%E7%8E%B0%E7%9A%84%E8%A7%84%E5%BE%8B%E5%86%99%E5%87%BA%E5%AE%8C%E6%95%B4%E7%9A%84%E7%AC%AC%E5%85%AB%E8%A1%8C%E4%B8%BA%EF%BC%BF11+11+2+11+3+3+11+4+6+4+11+5+10+10+5+11+6+15+a+15+6+1)
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