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JU-A_18-19
CU-A_18-19
HSC - উচ্চতর গণিত ১ম পত্র
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অধ্যায়-১০ঃ যোগজীকরণ
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∫
0
π
2
1
1
+
cos
x
d
x
=
কত
?
\int_{0}^{\frac{\pi}{2}} \frac{1}{1+\cos x} d x= কত ?
∫
0
2
π
1
+
c
o
s
x
1
d
x
=
কত
?
A.
π
2
\frac{\pi}{2}
2
π
B.
1
1
1
C.
π
4
\frac{\pi}{4}
4
π
D.
−
1
-1
−
1
Guide Answer
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