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Clearnote
Q&A
Junior High
Mathematics
6
Mathematics
Junior High
over 1 yearago
邱某某
6
家長簽名 有370回座位,王都座位有 390=- 40+11x31 556. 1291+5588(102+2) =111~20+33=65, 29=]> a₁ =π= 個。(10分) 1390 (20+10x3) 6/3900132+ 19x3) = 98° 第一排第一排, 65 5.設一等差級數的首項為64,第10項為10,則:(每格10分) (1)此等差級數自第12 項開始為負數。 134+6n40 80 3 65 90 145 129171821=340 29.+30=65 di+ad + 3d+d+ed + had led h< 1/4 = 22 ~ +15 Q50≤8) 自第1項加到第二項時,其和開始為負數dence(349+4+3+arth 3n-35n40 70 64 35-3 n(64+(n-1)-6) 21 10=6479xd (128+(n-1)-6) 0 -54=9xd1d=-6n(34+6n)-0 6. 求出100至500的整數中,所有7的倍數之和為多少?(10分) 設7的倍數=7n n(3n-35)=0> 3n=35 n< 11.~ 三確認口 師簽名 -10 = 225 人的動力 一件高於小我的事情 (目標,而感到自豪。如 的能力。 **門都想要學習、想像 810 390 zaitze -165 390-92 11 (a+a+30) 610390-91- ilai+165 71-15+1=57 1291=225 -15 5.6 557= 57(157)43 43 100 = 14, w =2451 7 a₁ = 15 an=71 100<7n<500 100217n 7n < 500 n<5000-71.w h = 71 ~ 15 A:2451 YST 301 215 2451 *請確保自己達成 有個目標必須衫 要,也不設太多 ')、「努力工 「少七小
Answers
hahaha
over 1 yearago
因為你原本設的是7n,所以求出來的2451記得要把7乘回來
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