{
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		{"id":"2e68d3920875d73b","type":"text","text":"[[数学归纳法]]","x":-400,"y":220,"width":250,"height":60},
		{"id":"0e4ab72e7db2f14a","type":"text","text":"## 二项式定理\n\n$$\n(x+y)^n = {n \\choose 0}x^n y^0 + {n \\choose 1}x^{n-1}y^1 + {n \\choose 2}x^{n-2}y^2 + \\cdots + {n \\choose n-1}x^1 y^{n-1} + {n \\choose n}x^0 y^n\n$$\n\n$$\n(a+b)^2=C_{n}^1a^{n-1}b^1+C_{n}^ka^{n-k}b^k\\dots+C_{n}^nb^n,n \\in N^*\n$$\n","x":-320,"y":-160,"width":640,"height":180}
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	"metadata":{
		"frontmatter":{
			"date":"24-06-21",
			"lastmod":null,
			"tags":[],
			"status":[],
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			"note-sections":[]
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		"version":"1.0-1.0"
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