Answer:
On the x-axis, plot to the left at -4.
From the point -4, go up 1 and to the LEFT 2.
When you draw yours line, it is a dashed line so leave a little space in it.
Then you should shade above the line.
Answer:
I hope C
Step-by-step explanation:
if I'm wrong please let me know
Answer:c
Step-by-step explanation:
Answer:
A. the product of complex conjugates is a difference of two squares and is always a real number
Step-by-step explanation:
Given a complex number z1 = x+iy where x is the real part and y is the imaginary part.
The conjugate of a complex number is the negative form of the complex number z1 above i.e z2= x-iy (The conjugate is gotten by mere changing of the plus sign in between the terms to a minus sign.
Taking the product of the complex number and its conjugate will give;
z1z2 = (x+iy)(x-iy)
z1z2 = x(x) - ixy + ixy - i²y²
z1z2 = x² - i²y²
.since i² = -1
z1z2 = x²-(-1)y²
z1z2 = x²+y²
The product gave a real function x²+y² since there is no presence of complex number 'i'
It can also be seen that the product of the complex numbers z1z2 is like taking the difference of two square. An example of difference of two square is that of two values a and b which is (a+b)(a-b).
From the above solution, it can be concluded that the product of complex conjugates is a difference of two squares and is always a real number.
Answer:
14.625
Step-by-step explanation:
i believe this is the answer all you do is so
78/5.3
