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BUET_18-19
HSC - উচ্চতর গণিত ২য় পত্র
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অধ্যায়-০৫ঃ দ্বিপদী বিস্তৃতি
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পাশের অসীম ধারাটির যোগফল নির্ণয় কর:
1
3
+
1.3
3.6
+
1.3.5
3.6.9
+
1.3
⋅
5.7
3
⋅
6.9.12
+
1
⋅
3
⋅
5.7.9
3.6.9
⋅
12.15
+
⋯
∞
\frac{1}{3}+\frac{1.3}{3.6}+\frac{1.3 .5}{3.6 .9}+\frac{1.3 \cdot 5.7}{3 \cdot 6.9 .12}+\frac{1 \cdot 3 \cdot 5.7 .9}{3.6 .9 \cdot 12.15}+\cdots \infty
3
1
+
3.6
1.3
+
3.6.9
1.3.5
+
3
⋅
6.9.12
1.3
⋅
5.7
+
3.6.9
⋅
12.15
1
⋅
3
⋅
5.7.9
+
⋯
∞
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