Maths Flashcards
How to find the roots of a quadratic with complex numbers
Completing the square
How to find the roots of a quadratic with complex numbers
Completing the square
What
What is a complex conjugate
Multiplying the coefficient of X by -1
What is a complex conjugate
Multiplying the coefficient of X by -1
How to do binomial expansion
Find what power the brackets are being multiplied by and put it Xc0 and start from there and multiplying the first number in the bracket by the power
The coefficients of each number in a complex conjugate are equal to the numbers in the other complex conjugate in the equation
How to find the roots of a quadratic with imaginary numbers in it
Separate the real and imaginary numbers and then now they are equal to the complex number on the other side 0+0i remember that 0i is still imaginary
What letter defines a complex number
Z
How to find the discriminant
√b²-4ac, if greater than 0 means there are 2 real, distinct roots, if equal to 0 the roots are equal, if less than 0 the roots are not real
How to add matrices
Add each individual component
