MAT135H1 Lecture Notes - Lecture 17: Thx
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Have used the notation we f " to stand for the derivative of the variable y depends on the variable. X y = fix ) . we the function f . can write its so far. Another way to view the notation fix meaning the deriative with respect is to to x of . think of. Ix ly ) the deriative with respect to. Eg . fix ) y = therefore and we know that ft 3) 1 we can write : ( is ) For a function f the derivative of its derivative is called the second derivative and written f " y - fix ) first derivative second derivative third derivative thx ) f " = 4 nth derivative thx ) dd#n or n z. The function is differentiable at x if . thing f the graph of the limit and the ththl- exists . a has slope of non vertical tangent line at x ,
