Find the derivatives of cos x from the first principle Problem Question Find the derivatives of cos x from the first principle Read more articles Previous PostFind the derivative of (2/(x+1))-(x^2/(3x-1)) Next PostFind the derivatives of sinx cosx Leave a Reply Cancel replyCommentEnter your name or username to comment Enter your email address to comment Enter your website URL (optional) Save my name, email, and website in this browser for the next time I comment. Δ