(x-7)/(7-x) if you factor out -1 from the numerator you get:
-(7-x)/(7-x) which is equal to:
-1
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.

I dont know exactly what it is
Answer:
Q1: p = - 33
Q2: d = - 99
Q3: t = - 13
Step-by-step explanation:
Q1: 
We solve this taking LCM.
We get: 


Q4: 
Again we proceed like Q1 by taking LCM.
We get: 



Q7: 5t + 12 = 4t - 1
We club the like terms on either side.



Hence, the answer.