5. Exercise 7.1 Chain Rule The tangent line to the curve is
horizontal means the derivative of the function at the point of
tangency is ZERO 0TLm 0TLm Analysis by graphs has limitations
6. Exercises 7.1 Chain Rule 042343' 22 xxxy 2042 xx 013 03434
22 xx xxxx 1,3 xx
7. Exercises 7.1 Chain Rule Recall the equation of a line, in
particular, the point-slope form 11 xxmyy 1,1, 11 yx 1at' xym
8. Exercises 7.1 Chain Rule 2' ,1at 2 22 ' 2 2212 ' 2 2/122 2
2/12 2 12 y x x xx y x xxxx y Equation of line is 121 xy
12. Exercises 8.1 Derivative Trigonometric Functions
radians31.152.75cos 01cos4' 4 11 o x xy Solution set: The cosine
function is a periodic function! It repeats the cycle every 2pi
radians. integeranyis ,231.1 k kx