Delta Fares

Calculus! Applications of the derivative please help!?

estimate sin61degrees - sin60degrees using linear approximation. (you must express delta theta in radians)

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1. /////// y=sinx y'=cosx dx=pi/180 dy=f'dx =(1/2)(pi/180)=pi/360 y=0.8898
2. d/dx(sin x)=cos x =(sin (x+del)-sin(x))/del Del=1*pi/180=0.01745 Sin(60+1)-sin61=cos X *del =cos 60 *del =0.0087266