132 Videos for "coordinates"

Symmetry of Polar Graphs  Problem 1
Math › Precalculus › Polar Coordinates and Complex Numbers
How to determine if the graph of a polar equation is symmetric about the yaxis. 
The Euler Formula  Problem 3
Math › Precalculus › Polar Coordinates and Complex Numbers
How to derive two trigonometric identities using Euler's Formula. 
More Roots of Complex Numbers  Problem 1
Math › Precalculus › Polar Coordinates and Complex Numbers
How to use four guidelines to find the sixth roots of a complex number, and how to identify the geometric properties of the roots. 
More Roots of Complex Numbers  Problem 3
Math › Precalculus › Polar Coordinates and Complex Numbers
How to find the nth roots of unity. 
More Roots of Complex Numbers  Concept
Math › Precalculus › Polar Coordinates and Complex Numbers
How to find the roots of a complex number quickly using four simple guidelines. 
Finding the Roots of a Complex Number  Problem 2
Math › Precalculus › Polar Coordinates and Complex Numbers
How to use DeMoivre's Theorem to compute the square roots of i. 
Finding the Roots of a Complex Number  Problem 1
Math › Precalculus › Polar Coordinates and Complex Numbers
How to use DeMoivre's Theorem to compute the fourth roots of a complex number, 16 and 16. 
Dividing Complex Numbers  Problem 2
Math › Precalculus › Polar Coordinates and Complex Numbers
How to find the quotient of two complex numbers in rectangular form, z1 = 6  6*i and z2 = 3 + 3*i, by converting them to trigonometric form. 
Symmetry of Polar Graphs  Problem 2
Math › Precalculus › Polar Coordinates and Complex Numbers
How to determine if the graph of a polar equation is symmetric about the yaxis when the first test of symmetry doesn't work. 
Families of Polar Curves: Circles, Cardiods, and Limacon  Concept
Math › Precalculus › Polar Coordinates and Complex Numbers
How to graph the special cases of the family r = a + b cos (theta) when a or b = 0. 
Families of Polar Curves: Roses  Concept
Math › Precalculus › Polar Coordinates and Complex Numbers
How to describe Roses, the family of curves with equations r=acos(b*theta) or r=asin(b*theta) when b >=2 and is an integer. 
Multiplying Complex Numbers  Problem 2
Math › Precalculus › Polar Coordinates and Complex Numbers
How to find the product of two complex numbers in rectangular form, z1 = 3 + 3*i and z2 = 1 + i*root(3), by converting them to trigonometric form. 
Families of Polar Curves: Roses  Problem 2
Math › Precalculus › Polar Coordinates and Complex Numbers
How to graph members of the polar family r = a sin(b*theta) when b is even. 
Finding the Roots of a Complex Number  Problem 3
Math › Precalculus › Polar Coordinates and Complex Numbers
How to use DeMoivre's Theorem and the halfangle formulas to compute the cube roots of a complex number, 7+24*i. 
Families of Polar Curves: Roses  Problem 1
Math › Precalculus › Polar Coordinates and Complex Numbers
How to graph members of the polar family r = a sin(b*theta) when b is odd. 
Converting Complex Numbers From Trigonometric Form to Rectangular  Concept
Math › Precalculus › Polar Coordinates and Complex Numbers
How to convert a complex number from trigonometric form to rectangular form. 
Converting Complex Numbers From Rectangular Form to Trigonometric  Concept
Math › Precalculus › Polar Coordinates and Complex Numbers
How to convert a complex number from rectangular form to trigonometric form. 
Families of Polar Curves: Conic Sections  Concept
Math › Precalculus › Polar Coordinates and Complex Numbers
How to describe the polar equations of conic sections. 
Families of Polar Curves: Circles, Cardiods, and Limacon  Problem 2
Math › Precalculus › Polar Coordinates and Complex Numbers
How to graph members of the polar family r = a + b cos (theta) when a > b > 0. 
Families of Polar Curves: Circles, Cardiods, and Limacon  Problem 1
Math › Precalculus › Polar Coordinates and Complex Numbers
How to graph the special case of the family r = a + b*cos(theta) when a = b.