Skip to content

Learn Practice Plan Tutors Ask AI

⌘K

Sign in Join freeGet started

Courses Lessons Quick lessons Merit Tutors' Videos

Loading

Every AP course and the SAT, with the best lessons, Merit AI, and a plan for every test.

Learn

Courses
Lessons
Quick lessons
Merit Tutors' Videos
Merit AI

Study

Exam Sprint
Quick session
Learning plan
My schedule
Progress

Tutoring

Find a tutor
Become a tutor
Partner with Merit
For teachers

Merit

About
Pricing
For parents
How ranking works
Privacy
Terms

Videos play on YouTube. AP® and SAT® are trademarks of the College Board, which is not affiliated with Merit.

© 2026 Merit

Learn Practice Plan Ask AI

JJ

Justus Winn-Howard

lesson on Merit: 1
topic: 1

AP Calculus BC

View on YouTube

Calc BC · Derivatives of tan, cot, sec, and csc

Calculus Tutorial: Derivative of Sec, Csc, Tan, and Cot

JJustus Winn-Howard

3.1K views on YouTube · 15 years ago