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9.3 三角形面積 (更新)

By: t9420, Views: 316

9.3 三角形面積 (更新)

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9.3 Areas of Triangle (Revised)

By: t9420, Views: 441

9.3 Areas of Triangle (Revised)

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2.3 等比數列_求有限項的總和

By: t9420, Views: 259

2.3 等比數列_求有限項的總和

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2.3 Geometric sequence_find the sum of finite terms

By: t9420, Views: 505

2.3 Geometric sequence_find the sum of finite terms

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S6 Ch1.3 Sum of terms

By: t1917, Views: 755

Find the sum of first n terms of arithmetic sequences.

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S6 Ch1.3 首n項之和

By: t1917, Views: 675

利用公式求等差數列的首n項之和。

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4S Maths Topic 18 Permutation and Combination_3

By: t1110, Views: 490

4S Maths Topic 18 Permutation and Combination_3

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form6_ch3_a1

By: t1904, Views: 264

form6_ch3_a1

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form6_ch3_a2

By: t1904, Views: 315

form6_ch3_a2

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