Derivative of -cos(x) + cos^3(x)/3

Описание к видео Derivative of -cos(x) + cos^3(x)/3

Derivative of -cos(x) + cos^3(x)/3

❤️ 𝐏𝐥𝐞𝐚𝐬𝐞 𝐒𝐔𝐁𝐒𝐂𝐑𝐈𝐁𝐄 𝐭𝐨 𝐡𝐞𝐥𝐩 𝐦𝐞 𝐠𝐫𝐨𝐰 𝐭𝐡𝐢𝐬 𝐜𝐡𝐚𝐧𝐧𝐞𝐥! 𝐓𝐡𝐚𝐧𝐤 𝐲𝐨𝐮!

🚶 𝐒𝐭𝐞𝐩𝐬
00:00 Rewrite expression
00:20 Derivative of cos(x)
00:28 Derivative of cos^3(x)
00:37 Derivative of cos(x)
00:46 Simplify expression
01:05 Take out sin(x) as common factor
01:16 Use the 1=sin^2(x)+cos^2(x) identity
01:43 Write sin(x)sin^2(x) as sin^3(x)
01:51 Final answer!
01:57 See more!

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