If \( I_{n}=\int \cos ^{n} x d x=\frac{\cos ^{n-1} x \cdot \sin x+(...

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If \( I_{n}=\int \cos ^{n} x d x=\frac{\cos ^{n-1} x \cdot \sin x+(n-1) I_{n-2}}{n} \& \)
\( \mathrm{P}^{17} \)
W
\( I_{5}=a \cos ^{4} x \sin x+b I_{3} \) then find the ordered pair
\( (a, b) ? \)
.
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