Links to regentsprep.org Imaginary Numbers

Definition imaginary numbers :
http://www.regentsprep.org/Regents/math/algtrig/ATO6/ImagineLes.htm

Cyclic nature of powers of i:
http://www.regentsprep.org/Regents/math/algtrig/ATO6/powerlesson.htm

Simplifying square roots with negative numbers:
http://www.regentsprep.org/Regents/math/algtrig/ATO6/SquareRootLes.htm

Adding and subtracting complex numbers:
http://www.regentsprep.org/Regents/math/algtrig/ATO6/lessonadd.htm

Multiplyling and dividing compex numbers:
http://www.regentsprep.org/Regents/math/algtrig/ATO6/multlesson.htm

Absolute value of complex numbers:
http://www.regentsprep.org/Regents/math/algtrig/ATO6/absvlecomlesson.htm

Representing complex numbers graphically:
http://www.regentsprep.org/Regents/math/algtrig/ATO6/cgraphlesson.htm

Solving quadratic equations with complex roots:
http://www.regentsprep.org/Regents/math/algtrig/ATE3/quadcomlesson.htm