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By: t9420, Views: 680

2.4 Geometric sequence_find the sum to infinity

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By: t9420, Views: 672

2.5 Geometric sequence_application

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By: t1917, Views: 1121

A review of sequences and arithmetic sequences.

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By: t1917, Views: 1114

Find the general term of arithmetic sequences by: 1. consider the pattern of terms 2. using the formula "T(n) = a + d(n-1)"

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By: t1917, Views: 1079

Find the sum of first n terms of arithmetic sequences.

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By: t1917, Views: 882

利用以下方式求等差數列的通項： 1. 考慮數列的模式 2. 用公式「T(n) = a + d(n-1)」

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By: t1917, Views: 896

利用公式求等差數列的首n項之和。

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By: t1110, Views: 693

4S Maths Topic 18 Permutation and Combination_3

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By: t1110, Views: 707

4S Maths Topic 18 Permutation and Combination_1

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