mt=f′(x1)=dydx|x=x1m sub t equals f prime of open paren x sub 1 close paren equals d y over d x end-fraction vertical line sub x equals x sub 1 end-sub Slope of the Normal (
For a general exponential function with a constant base, the rule becomes: mt=f′(x1)=dydx|x=x1m sub t equals f prime of open
In Chapter 3, you likely spent hours calculating derivatives using the "Increment Method" (the the rule becomes: In Chapter 3
( y = \frac\sin x1 + \cos x )
is isolated on one side, Chapter 4 introduces equations where are intertwined (e.g., mt=f′(x1)=dydx|x=x1m sub t equals f prime of open