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SUST-B_16-17
HSC - উচ্চতর গণিত ১ম পত্র
→
অধ্যায়-১০ঃ যোগজীকরণ
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a
a
a
এর মান কত হলে
∫
1
a
{
2
+
x
ln
(
x
2
+
5
)
}
d
x
+
∫
1
a
{
3
−
x
ln
(
x
2
+
5
)
}
d
x
=
30
\int_{1}^{a}\left\{2+x \ln \left(x^{2}+5\right)\right\} d x+\int_{1}^{a}\left\{3-x \ln \left(x^{2}+5\right)\right\} d x=30
∫
1
a
{
2
+
x
ln
(
x
2
+
5
)
}
d
x
+
∫
1
a
{
3
−
x
ln
(
x
2
+
5
)
}
d
x
=
30
A.
2
2
2
B.
ln
3
\ln 3
ln
3
C.
4
4
4
D.
ln
5
\ln 5
ln
5
E.
7
7
7
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