As you must know that (a + bi) and (a-bi) are complex numbers,each being conjugate of each other.
The meaning of conjugate is change the sign of the number preceding imaginary part.
In a+bi ,bi being the imaginary part . It has positive sign before it .so just change the sign to -(negative) .So a-bi is the conjugate of a+bi. Similarly a+bi is the conjugate of a-bi.
Now com to the product of two complex number which are conjugate of each other.
(a+bi)(a-bi)=
=
So product of (74 x +94 i) and (74 x-94 i) which are conjugate of each other , their product will be
=
The expression (74x+94i)(74x−94i) can be written as the difference of squares (74x)2−(94i)2, which is equal to 4916x2+8116.
This statement is true for Princess Poly Regarding her product of (74x+94i) and (74x−94i).
Answer:
R = $ 40
Step-by-step explanation:
The answer for the tax of 2500 is 150 tax and the answer for the original amount of 108 is 1800
Answer:
150 units
Step-by-step explanation:
50 x 3 = 150
57 but it is an estimate because of the 4 so your answer is 57.4