TVET CHNS,Eng,Maths
Senior High
求解,我有點看不懂a10=那一行
8. 已知
k=1
a=3n²-6n,則第10項為
(A) 51 (B) 57 (C) 189 (D) 240
• ak-3₁²-6h
O
of
6-08 Pr
210 = _ak-jak ²0
910=
k=1.
and
= (3x/0²-6×10)-(3x9²- 6x9)
240-243+54=51#
Answers
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