Rotating a System
Not what you're looking for?
Write the equation in terms of a rotated x'y'-system using q, the angle of rotation. Write the equation involving x' and y' in standard form.
x2 + 2xy + y2 - 8x + 8y = 0; q = 45°
x'2 = -4sqrt2y'2
x'2 = -4sprt2y'
3x'2 - 4sqrt2x'y' + y'2 = 0
2x'2 - sqrt2x'y' + 2y'2 = 0
Purchase this Solution
Solution Summary
A system is rotated and solved. The solution is detailed and well presented. The response received a rating of "5/5" from the student who originally posted the question.
Purchase this Solution
Free BrainMass Quizzes
Probability Quiz
Some questions on probability
Multiplying Complex Numbers
This is a short quiz to check your understanding of multiplication of complex numbers in rectangular form.
Graphs and Functions
This quiz helps you easily identify a function and test your understanding of ranges, domains , function inverses and transformations.
Solving quadratic inequalities
This quiz test you on how well you are familiar with solving quadratic inequalities.
Exponential Expressions
In this quiz, you will have a chance to practice basic terminology of exponential expressions and how to evaluate them.