Z^2 - 2z - 35 = 0
(z - 7)(z + 5) = 0
z - 7 = 0
z = 7
z + 5 = 0
z = -5
solution is : z = 7,-5
Isolate the square root on one side of the equation and then square both sides of the equation
A complex number is made of two parts: one real part (without i) and one imaginary part (with i).
The conjugate of a complex number is found by inverting the sign of the imaginary part of the number.
Therefore, the conjugate of 10+3i is 10−3i
Answer: 9 L
Step-by-step explanation:
Given
The dimension of the rectangular container is 
It is filled with 
of the height
Water present in the container
Also, 
Now, half of the water is poured out
So, half is left
Thus, 9 L of water is left in the container
