nth differential coefficient of cos ^5theta sin^7theta
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The differential coefficient of cos ^5theta sin^7theta is 1.
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1/2n[ 12 n sin (n π/2 + 12 theta) - 210n sin ( nπ /2 + 10 theta) - 48n sin ( nπ/2 + 8 theta) + 106n sin ( nπ/2+6theta) + 54n sin ( nπ /2 +4 theta) - 202n sin ( nπ /2 + 2 theta)]
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