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Continue to ChatMisc 28 - Chapter 12 Class 11 Limits and Derivatives https://teachoo.com//2917/1571/Misc-28---Find-derivative--x---1---tan-x---Chapter-13-Class-11/category/Derivatives-by-formula---other-trignometric/
Misc 28 - Chapter 12 Class 11 Limits and Derivatives https://teachoo.com//2917/1571/Misc-28---Find-derivative--x---1---tan-x---Chapter-13-Class-11/category/Derivatives-by-formula---other-trignometric/