Answer:
- 4/5
Step-by-step explanation:
Step 1:
n + 7/10 = - 1/10
Step 2:
n = - 1/10 - 7/10
Answer:
n = - 4/5
Hope This Helps :)
Good question
here we go ...
![f(z) = e^{\frac{z}{z-6} }\\~\\ \frac{d}{dz}(f(z))= e^{\frac{z}{z-6} }*[ \frac{z(1)-(z-6)*1}{(z-6)^2} ]=e^{\frac{z}{z-6} }*[ \frac{z-z+6}{(z-6)^2} ]\\~\\=e^{\frac{z}{z-6} }*[ \frac{6}{(z-6)^2} ]](https://tex.z-dn.net/?f=f%28z%29%20%3D%20e%5E%7B%5Cfrac%7Bz%7D%7Bz-6%7D%20%7D%5C%5C~%5C%5C%20%5Cfrac%7Bd%7D%7Bdz%7D%28f%28z%29%29%3D%20e%5E%7B%5Cfrac%7Bz%7D%7Bz-6%7D%20%7D%2A%5B%20%5Cfrac%7Bz%281%29-%28z-6%29%2A1%7D%7B%28z-6%29%5E2%7D%20%5D%3De%5E%7B%5Cfrac%7Bz%7D%7Bz-6%7D%20%7D%2A%5B%20%5Cfrac%7Bz-z%2B6%7D%7B%28z-6%29%5E2%7D%20%5D%5C%5C~%5C%5C%3De%5E%7B%5Cfrac%7Bz%7D%7Bz-6%7D%20%7D%2A%5B%20%5Cfrac%7B6%7D%7B%28z-6%29%5E2%7D%20%5D)
Take it step by step, then you will get it totally understood
![D=b^2-4ac\\D=4^2-4(4)(1)\\D=16-16\\D=0](https://tex.z-dn.net/?f=D%3Db%5E2-4ac%5C%5CD%3D4%5E2-4%284%29%281%29%5C%5CD%3D16-16%5C%5CD%3D0)
Meaning there's only 1 real root, complete the square and you get the answer.
![(x+y)^2=x^2+2xy+y^2](https://tex.z-dn.net/?f=%28x%2By%29%5E2%3Dx%5E2%2B2xy%2By%5E2)
We're going to use this formula, so if x² = 4x² then x = 2x
and if y² = 1 then y = 1
Straight to formula
![(2x+1)^2=0\\x=-\frac{1}{2}](https://tex.z-dn.net/?f=%282x%2B1%29%5E2%3D0%5C%5Cx%3D-%5Cfrac%7B1%7D%7B2%7D)
Because (2x+1)² is basically (2x+1)(2x+1), we get the same value of x.
So the answer is x = -1/2
(When D>0, there are 2 real roots.)
(When D=0, there are only 1 real root.)
(When D<0, there are no real roots, but 2 complex roots.)
Answer:
8
Step-by-step explanation:
1+3 is 4
16÷4 is 4
4+4 is 8