1. Specialist Maths
Geometry Proofs
Week 1

2. Vector Proofs

3. Example 1(EX5A1) A B a b E D C

4. Solution 1 A B a b E D C

5. Example 2 (Ex 5A1) C E D B A

6. Solution 2 C b a E D B A

7. Example 3 (Ex 5A1) C D E A a B b O

8. Solution 3 C D E A a B b O

9. Example 4 (Ex 5A2) B C A O

10. Solution 4 B b C a A O

11. Example 5 (Ex 5A3) A
AC and DB produced meet at M. Find the position vector of M in terms of a and b. a O C b B D

12. Solution 5 A M a O C b B D

13. Example 6 (Ex5A3) (extension)C N O a A M b B

14. Solution 6 C N O a A M b B

15. This Week Text pages 176 to 183. Exercise 5A1 Q1 – 8.