| 28 | 26th LS(200118) Inverse Matrix(P327 Ex11) | jp Park  | 2020-01-18 | 0 |
| 27 | 25th LS(200110) Mathematical Induction(P248 Ex3)+Matrix | jp Park | 2020-01-10 | 0 |
| 26 | 24th LS(200106) Mathematical Induction(P239 Ex3) | jp Park | 2020-01-07 | 0 |
| 25 | 23th LS(200103) Proof(P224) | jp Park | 2020-01-04 | 0 |
| 24 | 22th LS(200102) Binomial(P208) | jp Park | 2020-01-02 | 0 |
| 23 | 21th LS(191231) Combination(P191) | jp Park | 2019-12-31 | 0 |
| 22 | 20th LS(191230) Permutation(P185) | jp Park | 2019-12-31 | 1 |
| 21 | 19th LS(191223) Rational Function Graph(P165) | jp Park | 2019-12-23 | 2 |
| 20 | 18th LS(191219) Polynomial Function Graph and its applicatio.. | jp Park | 2019-12-19 | 1 |
| 19 | 17th LS(191217) Polynomial Function Graph(P137) | jp Park | 2019-12-17 | 0 |
| 18 | 16th LS(191216) Factoring & Imaginary root(P130) | jp Park | 2019-12-16 | 0 |
| 17 | 15th LS(191209) Remainder Theorem(P125) | jp Park | 2019-12-10 | 0 |
| 16 | 14th LS(191207) Complex Number(P104) | jp Park | 2019-12-08 | 0 |
| 15 | 13th LS(191206) Log Function(P86) | jp Park | 2019-12-07 | 1 |
| 14 | 12th LS(191203) Natural Exponential Function(P63) | jp Park | 2019-12-03 | 0 |
| 13 | 11th LS(191128) Exponential Function 연습문제(P55) | jp Park | 2019-11-29 | 1 |
| 12 | 10th LS(191122) Compund Angle Identities 연습문제(P37) | jp Park | 2019-11-22 | 0 |
| 11 | 9th LS(191119) Compund Angle Identities(P35) | jp Park | 2019-11-19 | 0 |
| 10 | 8th LS(191115) trigonometry ftn and graph | jp Park | 2019-11-15 | 1 |
| 9 | 7th LS(191108) 시험대비 복습 | jp Park | 2019-11-08 | 0 |
