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Mathematics
Mathematics
Problem
If
∫
0
π
/
3
cos
4
x
d
x
=
a
π
+
b
3
\int_{0}^{\pi/3} \cos^4 x\,dx = a\pi + b\sqrt{3}
∫
0
π
/3
cos
4
x
d
x
=
aπ
+
b
3
, where
a
a
a
and
b
b
b
are rational numbers, then
9
a
+
8
b
9a + 8b
9
a
+
8
b
is equal to :
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