12 Three dimensional coordinate system
 1 Three dimensional coordinate system
MAT 1B JR 3D M02 DIVSON FORMU(26 May 2016)MAT 1B JR 3D M03 OBJ L 1(26 May 2016) MAT 1B JR 3D M06 OBJ PCQ(26 May 2016) MAT 1B JR 3D M05 OBJ L 3(26 May 2016) MAT 1B JR 3D M01 INTRO(26 May 2016) MAT 1B JR 3D M04 OBJ L 2(26 May 2016) MAT 1B JR 3D M01 INTRO(26 May 2016) (1) 2 Direction cosians and direction ratios
MAT 1B JR DC M04 OBJ L 2(26 May 2016) MAT 1B JR DC M01 INTRO(26 May 2016) MAT 1B JR DC M02 EX 6 PROB(26 May 2016) MAT 1B JR DC M05 OBJ L 3(26 May 2016) MAT 1B JR DC M03 OBJ L 1(26 May 2016) MAT 1B JR DC M06 OBJ PCQS(26 May 2016) 