Udemy just started a period of ultra low prices on after the New Year. Please use our referral links to get to the courses on Udemy.

Our referral links to our courses. Please, spread the word:

“Precalculus 1: Basic notions”

https://www.udemy.com/course/precalculus-1/?referralCode=BC31ADC3513CB5671594

“Precalculus 2: Polynomials and rational functions”

https://www.udemy.com/course/precalculus-2/?referralCode=69E9C040646BEBF347D3

“Precalculus 3: Trigonometry”

https://www.udemy.com/course/precalculus-3/?referralCode=CF2BADBA886145FAF304

“Precalculus 4: Exponentials and logarithms”

https://www.udemy.com/course/precalculus-4/?referralCode=4AE44169CA15948044F7

“Linear Algebra and Geometry 1”

https://www.udemy.com/course/linear-algebra-and-geometry-1/?referralCode=B75248FB2F3584AB89B4

“Linear Algebra and Geometry 2”

https://www.udemy.com/course/linear-algebra-and-geometry-2/?referralCode=5E3100CD85267571C1FC

“Linear Algebra and Geometry 3”

https://www.udemy.com/course/linear-algebra-and-geometry-3/?referralCode=C22C7F8997A597E79BC0

“Calculus 1”, part 1 of 2

https://www.udemy.com/course/calculus-1-p1/?referralCode=34060B17F2C20E287EE3

“Calculus 3” part 1

https://www.udemy.com/course/calculus-3-multivariable-calculus-part-1-of-2/?referralCode=DB4AA455838164AEFCF3

“Calculus 3” part 2

https://www.udemy.com/course/calculus-3-multivariable-calculus-part-2-of-2/?referralCode=32F32A8C5BCCE2FA8C3D

Don’t miss our FREE courses:

Free course 1: “Mathematics: Completing the square”

https://www.udemy.com/course/completing-the-square/?referralCode=78B4B7F6C5DD937526D3

Free course 2: “Mathematics: Proofs by induction”

https://www.udemy.com/course/proofs-by-induction/?referralCode=5C8B2F9F4F55B813E725

Free course 3: “Mathematics: Fun tricks for everybody”

https://www.udemy.com/course/fun-tricks/?referralCode=8B64637ABBF0DD8169B9

For all these courses, you can also try the code “BF_HANIA” which may give you yet another dollar or two rebate (except for Lin