如图，第6题和解析都有，c上面2下面4乘a上面3下面3等于36为什么，a上下3什么意思，高中数学 行测：1. 1，2，2，3，4，（） A.6 B.7 C.8...
\u5982\u56fe\uff0c\u7b2c6\u9898\u548c\u89e3\u6790\u90fd\u6709\uff0cc\u4e0a\u97622\u4e0b\u97624\u4e58a\u4e0a\u97623\u4e0b\u97623\u7b49\u4e8e36\u4e3a\u4ec0\u4e48\uff0ca\u4e0a\u4e0b3\u4ec0\u4e48\u610f\u601d\u4f60\u653e\u4e0a\u6765\u7684\u56fe\u7247\u4e2d\uff0c\u8003\u67e5\u65b9\u5411\u5df2\u7ecf\u5199\u5f97\u5f88\u6e05\u695a\u4e86\uff0c\u662f\u6392\u5217\u7ec4\u5408\u7684\u5b9e\u9645\u5e94\u7528\uff0c\u662f\u9ad8\u4e2d\u7684\u6392\u5217\u7ec4\u5408\u77e5\u8bc6\u3002\u7b49\u4f60\u4e0a\u4e86\u9ad8\u4e2d\u5c31\u5b66\u5230\u4e86\u3002
C\u662f\u7ec4\u5408\u6570\u7b26\u53f7\uff0c\u8ba1\u7b97\u7ec4\u5408\u503c
A\u662f\u6392\u5217\u6570\u7b26\u53f7\uff0c\u8ba1\u7b97\u6392\u5217\u503c
C(m\uff0cn)=m\u00b7(m-1)\u00b7...\u00b7(m-n+1)/[n\u00b7(n-1)\u00b7...\u00b71]
A(m\uff0cn)=m\u00b7(m-1)\u00b7...\u00b7(m-n+1)
C(4\uff0c2)=4\u00b73/(2\u00b71)=6
A(3\uff0c3)=3\u00b72\u00b71=6
1\uff0c2\uff0c2\uff0c3\uff0c4\uff0c\uff08\uff09 A.6 B.7 C.8 D.9
\u7b2c\u4e00\u9898\u7b54\u6848\u4e3aD\u3002
\u89e3\u6790\uff1a
\u8fd9\u9053\u9898\u76ee\u7684\u7b54\u6848\u6709\u70b9\u513f\u95ee\u9898\uff0c\u5e94\u8be5\u4e3aA\u3002
a\uff083\uff09=a\uff081\uff09+a\uff082\uff09-1=2\uff1b
a\uff084\uff09=a\uff082\uff09+a\uff083\uff09-1=3\uff1b
a\uff085\uff09=a\uff083\uff09+a\uff084\uff09-1=4\uff1b
a\uff086\uff09=a\uff084\uff09+a\uff085\uff09-1=6\u3002\u6545\uff0c\u9009A\u3002
2. 4\uff0c13\uff0c36\uff0c\uff08\uff09\uff0c268 A.97 B.81 C.126 D.179
a\uff081\uff09=3¹+1²=4\uff1b
a\uff082\uff09=3²+2²=13\uff1b
a\uff083\uff09=3³+3²=36\uff1b
a\uff084\uff09=3^4+4²=97\uff1b
a\uff085\uff09=3^5+5²=268\u3002
\u56e0\u6b64\uff0c\u6b64\u9898\u9009A\u3002
3. 2-1\uff0c13+2\uff0c13+2\uff0c\uff08\uff09 A.15-2 B.5-2 C.1 D.3-2
\u6ca1\u770b\u61c2\u3002\u4e0d\u77e5\u9053\u4e3a\u4ec0\u4e48\u9009B\u3002
4. 2+2\uff0c4+7\uff0c8+23\uff0c\uff08\uff09 A.16+23 B.16+17 C.8+17 D.16
\u4e24\u9879\u76f8\u52a0\uff0c\u524d\u9762\u662f2\u7684\u5e42\uff0c\u6240\u4ee5\u53ea\u80fd\u9009A\u6216\u8005B\u3002
\u540e\u4e00\u9879\u5f62\u6210\u7684\u6570\u5217\u4e3a2\uff0c7\uff0c23\uff0c17\u3002
\u5982\u679c\u786c\u51d1\u7684\u8bdd\uff0c\u53ef\u4ee5\u5f97\u5230\u901a\u9879\u516c\u5f0f\u4e3a
a\uff08n\uff09=[11\u00d7\uff08-2\uff09^\uff08n-1\uff09+78n-71]/9\u3002
C（）组合
A(上m 下n)=n(n-1)(n-2)...(n-m+1)
C(上m 下n)=A(上m,下n)/(n*(n-1)...(2)(1))
这个是排列组合的知识，就是高中数学的一部分，建议查看课本的定义
绛旓細璁綜G=a,CF=b,FG=c a^2+b^2=c^2 (1)c^2=(a+b)^2 (2锛夌敱锛1锛夛紙2锛夊緱 c^2=4ab=a^2+b^2 涓よ竟闄や互ab 4=a/b+b/a 璁綼/b=y y+1/y=4鍗硑^2-4y+1=0 瑙ｅ緱 y=2+鈭3 鎴2-鈭3 鍗硉anx=2-鈭3鎴2+鈭3 ...
绛旓細A+B+C+D+E=75 B-A=4 A=B-4 B-C=2 C=B-2 D-C=4 C=D-4 D-4=B-2 D=B+2 D-E=8 E=D-8 E=B+2-8 E=B-6 (B-4)+B+(B-2)+(B+2)+(B-6)=75 5B-10=75 5B=85 B=17 A=B-4=17-4=13 C=B-2=17-2=15 D=B+2=17+2=19 E=B...
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