- #1
alijan kk
- 130
- 5
Homework Statement
What is the value of x and y , when (x+iy) ^2=5+4i?
Homework Equations
The Attempt at a Solution
(x+iy)^2=5+4i
x^2+2xiy-y^2=5+4i
Last edited by a moderator:
Good. Now keep going -- equate the real and imaginary parts and solve the 2 simultaneous equations...alijan kk said:Homework Statement
What is the value of x and y , when (x+iy) ^2=5+4i?
Homework Equations
The Attempt at a Solution
(x+iy)^2=5+4i
x^2+2xiy-y^2=5+4i
alijan kk said:Homework Statement
What is the value of x and y , when (x+iy) ^2=5+4i?
Homework Equations
The Attempt at a Solution
(x+iy)^2=5+4i
x^2+2xiy-y^2=5+4i
mpresic said:The two equations are difficult to solve simultaneously. You can solve graphically for the intercept. Both equations are hyperbolas (one is rotated). Alternatively to solve without graphics you should express 5 + 4i in polar form and then take the square root.
The process for solving equations involves isolating the variable on one side of the equation and simplifying the other side until you reach a solution. This usually involves using inverse operations, such as addition and subtraction or multiplication and division, to cancel out any coefficients or constants on the variable.
The operation you use when solving equations depends on the type of equation you are working with. For linear equations, you will typically use addition and subtraction to isolate the variable. For quadratic equations, you may need to use factoring or the quadratic formula. It is important to carefully analyze the equation and determine the best approach to solving it.
If there are variables on both sides of the equation, the first step is to combine like terms on both sides. Then, use inverse operations to isolate the variable on one side of the equation. Once the variable is isolated, continue to simplify the other side until you reach a solution.
Yes, it is always a good idea to check your solution to an equation. To check, simply substitute the solution into the original equation and simplify both sides. If the two sides are equal, then your solution is correct.
If you get stuck when solving an equation, take a step back and review the process. Make sure you have correctly applied inverse operations and simplified both sides of the equation. You can also try plugging in different values for the variable to see if you can find a solution. If you still cannot solve the equation, reach out to a teacher or tutor for assistance.