几道数列题求解1.2,3,7,16,65,321,( )A.4546 B.4548 C.4542 D.45442.1 1/2 6/11 17/29 23/38 ( )3.0,0,6,24,60,120 ( )A.180 B.196 C.210 D.2164.2,3,7,45,2017 ( )A.4068271 B.4068273 C.4068275 D.40682775.2,2,3,4,9,32 ( )A.129 B.215 C
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![几道数列题求解1.2,3,7,16,65,321,( )A.4546 B.4548 C.4542 D.45442.1 1/2 6/11 17/29 23/38 ( )3.0,0,6,24,60,120 ( )A.180 B.196 C.210 D.2164.2,3,7,45,2017 ( )A.4068271 B.4068273 C.4068275 D.40682775.2,2,3,4,9,32 ( )A.129 B.215 C](/uploads/image/z/400286-38-6.jpg?t=%E5%87%A0%E9%81%93%E6%95%B0%E5%88%97%E9%A2%98%E6%B1%82%E8%A7%A31.2%2C3%2C7%2C16%2C65%2C321%2C%EF%BC%88+%EF%BC%89A.4546+B.4548+C.4542+D.45442.1+1%2F2+6%2F11+17%2F29+23%2F38+%EF%BC%88+%EF%BC%893.0%2C0%2C6%2C24%2C60%2C120+%EF%BC%88+%EF%BC%89A.180+B.196+C.210+D.2164.2%2C3%2C7%2C45%2C2017+%EF%BC%88+%EF%BC%89A.4068271+B.4068273+C.4068275+D.40682775.2%2C2%2C3%2C4%2C9%2C32+%EF%BC%88+%EF%BC%89A.129+B.215+C)
几道数列题求解1.2,3,7,16,65,321,( )A.4546 B.4548 C.4542 D.45442.1 1/2 6/11 17/29 23/38 ( )3.0,0,6,24,60,120 ( )A.180 B.196 C.210 D.2164.2,3,7,45,2017 ( )A.4068271 B.4068273 C.4068275 D.40682775.2,2,3,4,9,32 ( )A.129 B.215 C
几道数列题求解
1.2,3,7,16,65,321,( )
A.4546 B.4548 C.4542 D.4544
2.1 1/2 6/11 17/29 23/38 ( )
3.0,0,6,24,60,120 ( )
A.180 B.196 C.210 D.216
4.2,3,7,45,2017 ( )
A.4068271 B.4068273 C.4068275 D.4068277
5.2,2,3,4,9,32 ( )
A.129 B.215 C.257 D.283
几道数列题求解1.2,3,7,16,65,321,( )A.4546 B.4548 C.4542 D.45442.1 1/2 6/11 17/29 23/38 ( )3.0,0,6,24,60,120 ( )A.180 B.196 C.210 D.2164.2,3,7,45,2017 ( )A.4068271 B.4068273 C.4068275 D.40682775.2,2,3,4,9,32 ( )A.129 B.215 C
1.A 7=2^2+3 16=3^2+7 65=7^2+16 321=16^2+65 4546=65^2+321
2.1/1、2/4、6/11、17/29、46/76可以看到,第二项的分子为前一项分式的分子+分母,分母为前一项的分母+自身的分子+1.所以答案为:122/199
3.B 0=0^3-0 0=1^3-1 6=2^3-2 24=3^3-3 60=4^3-4 120=5^3-5 210=6^3-6
4.B 3=2^2-2^0 7=3^2-2^1 45=7^2-2^2 2017=45^2-2^3 4068273=2017^2-2^4
5.D 3=2*2-1 4=2*3-2 9=3*4-3 32=4*9-4 283=9*32-5
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