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RB_2021
HSC - উচ্চতর গণিত ১ম পত্র
→
অধ্যায়-১০ঃ যোগজীকরণ
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f
(
x
)
=
2
x
f(x)=2 x
f
(
x
)
=
2
x
হলে-
i.
∫
d
x
f
(
x
)
=
1
2
ln
x
+
c
\text { i. } \int \frac{d x}{f(x)}=\frac{1}{2} \ln x+c
i.
∫
f
(
x
)
d
x
=
2
1
ln
x
+
c
ii.
∫
e
f
(
x
)
d
x
=
1
2
e
2
x
+
c
\text { ii. } \int e^{f(x)} d x=\frac{1}{2} e^{2 x}+c
ii.
∫
e
f
(
x
)
d
x
=
2
1
e
2
x
+
c
iii.
∫
0
1
f
(
x
)
d
x
=
1
\text { iii. } \int_{0}^{1} f(x) d x=1
iii.
∫
0
1
f
(
x
)
d
x
=
1
নিচের কোনটি সঠিক?
A.
i ও ii
B.
i ও iii
C.
ii ও iii
D.
i, ii ও iii
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