Question

At (pi,0), y' =cos(sinx)cos(x)

Answer 1

hello

Answer 2

Integrate both sides
You may want to use a substitution.

Answer 3

im trying to find the tangent line

Answer 4

equation that is

Answer 5

Oh.

Answer 6

my book has them plugging in pi for the trig functions

Answer 7

So you are already given the general form of the slope

and lines have this form y=mx+b

So evaluate y' at x=pi and that is m

To find the y-intercept b, you use the point (pi,0) where x=pi and y=0 and plug it into y=mx+b to find b

Answer 8

yes thats my problem, somehow my book is getting -1 and i am not sure how

Answer 9

cos(pi) = 1

Answer 10

cos(pi)=-1

Answer 11

? how

Answer 12

ohhhh im thinking 90

Answer 13

at 180 x = -1

Answer 14

gotcha