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IUT_16-17
HSC - উচ্চতর গণিত ২য় পত্র
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অধ্যায়-০৫ঃ দ্বিপদী বিস্তৃতি
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All Topics
In the expansion of
(
1
+
1
x
)
−
1
, when
−
1
<
x
<
1
, the coefficient of
x
7
is-
\text { In the expansion of }\left(1+\frac{1}{x}\right)^{-1} \text {, when }-1<x<1 \text {, the coefficient of } x^{7} \text { is- }
In the expansion of
(
1
+
x
1
)
−
1
, when
−
1
<
x
<
1
, the coefficient of
x
7
is-
A.
1
1
1
B.
−
1
-1
−
1
C.
1
2
\frac{1}{2}
2
1
D.
−
1
2
-\frac{1}{2}
−
2
1
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