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RB_2021
HSC - উচ্চতর গণিত ১ম পত্র
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অধ্যায়-১০ঃ যোগজীকরণ
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f
(
x
)
=
x
2
f(x)=x^{2}
f
(
x
)
=
x
2
ক.
∫
5
e
2
x
1
+
e
4
x
d
x
\int \frac{5 e^{2 x}}{1+e^{4 x}} d x
∫
1
+
e
4
x
5
e
2
x
d
x
নির্ণয় কর ।
খ.
∫
[
1
+
{
f
(
x
)
}
2
1
+
f
(
x
)
+
1
f
(
x
)
+
f
(
x
)
+
1
]
d
x
\int\left[\frac{1+\{f(x)\}^{2}}{1+f(\mathrm{x})}+\frac{1}{f(\mathrm{x})+\sqrt{f(\mathrm{x})}+1}\right] \mathrm{dx}
∫
[
1
+
f
(
x
)
1
+
{
f
(
x
)
}
2
+
f
(
x
)
+
f
(
x
)
+
1
1
]
dx
নির্ণয় কর।
গ.
∫
1
2
[
f
(
x
)
e
f
(
x
)
+
{
f
(
x
)
−
1
}
2
f
(
x
)
]
d
x
\int_{1}^{2}\left[\sqrt{f(x)} \mathrm{e}^{f(x)}+\frac{\{f(x)-1\}^{2}}{f(\mathrm{x})}\right] \mathrm{dx}
∫
1
2
[
f
(
x
)
e
f
(
x
)
+
f
(
x
)
{
f
(
x
)
−
1
}
2
]
dx
এর মান নির্ণয় কর ।
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