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Mathematics
Problem
The minimum odd value of '
a
a
a
' (
a
>
1
a > 1
a
>
1
) for which
∫
10
19
sin
x
1
+
x
a
d
x
<
1
9
\int_{10}^{19} \frac{\sin x}{1+x^a} dx < \frac{1}{9}
∫
10
19
1
+
x
a
s
i
n
x
d
x
<
9
1
, is equal to a. 1 b. 3 c. 5 d. 9
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