Answer:
False
Step-by-step explanation:
The answer is c to your question
Answer:

Step-by-step explanation:
The equation to the line normal to the curve has the following format:

In whicm m is the derivative of y at the point 
In this problem, we have that:



The derivative of
is 
So



The equation of the line normal to the curve of y=3cos1/3x is:




Answer:
x=45
Step-by-step explanation:
the sum of exterior angles is equal to 360
3x+x+3x+x=360
8x=360
x= 45