Mathematics
Senior High
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求更詳細的解法，淺顯易懂的那種🙏🏻
類題1
、
…….01 求动革,,
JORSJON (HT AC
1
095
9
2.
已知等差數列(a.)的公差d-
100 項之和 Slow =
145
解
ai +as+as+a+a, +...... +ags + 497 +99=60
TI
【興大附中)
08
KA
1、
A
2
類題1
1
1
.
1-2
a2=ait
....
(4=az +-
la
2
1
0100 =299 +
2
..a2 +84 + ...... +0100
=
= (a +az + ...... +299) +50 X-
2 2
= 85
# S100=60+85=145
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