Answer:
following are the solution to the given points:
Step-by-step explanation:
In point a:


calculating unit vector:

the point Q is at a distance h from P(6,6) Here, h=0.1

the value of Q= (5.92928 ,6.07071 )
In point b:
Calculating the directional derivative of
at P in the direction of 



In point C:
Computing the directional derivative using the partial derivatives of f.

Answer:
300. In this case, it's very easy to do this percentage inflation. Since 20 is a multiple of 100, and we want to know the 100%, you just multiply the 20 by 5 to make it 100. Along with this, you multiply the 60 by 5 as well, which gives you 300.
Any portion of the circumference of a circle is called a radius
The first on is the tenth place
the second one is the tenth place
the third one is the tenth place
the last one is the millionth place
hope i helped :) i might be wrong though