
※ 引述《justin0602 (justin)》之銘言:
: http://picmoe.net/d.php?id=1356617523333
2+(a-8)+(a-7)+...+a = 56
=> a = 10
=> f(1.1) = (1.1-1)q_1(1.1)+10
= 0.1[(1.1-1)q_2(1.1)+9]+10
= 0.01[(1.1-1)q_3(1.1)+8]+10.9
...
= 0.00000001[(1.1-1)q_9(1.1)+2]+10.9876543
= 10.98765434
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