1 . 如果对于三个数
、
、
能构成三角形的三边,则称这三个数为“三角形数”,对于“三角形数”
、
、
,如果函数
使得三个数
、
、
仍为“三角形数”,则称
为“保三角形函数”.
(1)对于“三角形数”
、
、
,其中
,若
,判断函数
是否是“保三角形函数”,并说明理由;
(2)对于“三角形数”
、
、
,其中
,若
,判断函数
是否是“保三角形函数”,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff3bf2007903adc64d089a054c2284a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4889b4b46d3cd6dd677d200bdf4914fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8de447d5e47448d0f15a7535bf3ce0be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(1)对于“三角形数”
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8dd0c52aca1675c17b9a019aa7901e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbfdf1828a8dfbd475598d3c69e86414.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c49065dba37bda632460abb2929f6ddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/457eb5e0000350b102d387a80cf3476b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(2)对于“三角形数”
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0643e854e863263f396fa25ab54d44e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae43a9e2f9976ced1f55c62d24c80bad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adbc8ca5a7888a06f1aab92f76f62a0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/588bbf780d49cf4d29802c2e4126f112.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
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2021-07-24更新
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6卷引用:河南省南阳市邓州市第六高级中学校2023-2024学年高二下学期开学测试数学试题