Page 100 - ADVANCED MATH F.5

Form Five Form Five

 3 7   − 3 
x
3.  x∈ : x > or x <−  13. x∈ : << 1 

 2 2   2 
4.   x∈ : x <− 1 or x > 3  14. {x∈ :1 x< < 3 or x <− } 1
2
FOR ONLINE READING ONLY
{
 2  15. {x∈: 1x∈ : 1 x− << or 0x− << 0 0 and0 <<and << } 1 } 1
x x
x
5. {x∈ : 4−< < } 5

6. {x∈ : x > 3or x <− } 1 16. x∈ : 2 << 1 or 3 << 4  
x
x

7. {x∈ : 1 x−< < } 1  3 1 2 
− <<
<<
8. {x∈ −< 0 and x > } 1 17.   : 1 x < x ∈ : 1 x or 1 x 2  
 3 
x
9. {x∈ : x ≤− 1 or 0 < ≤ } 1 −  1 − 3
18. x∈  : x < or x > 
10. {x∈ : x ≤ } 5  3 or x ≥ 2 7 
11. {x∈ :0 x≤≤ } 5 19. { :xx∈ }
 − 3
12. x∈ : x ≥− 1 or x ≤− 5 or − < < 
x
2

 2 

Matrices
Teaching steps
1. Think-In-Pair-Share on practices of introducing matrices through
their prior knowledge. Ask students through discussion to perform
previous Activity 5.7 in the Student’s Book to recognize the
number of elements, rows, columns, and order of a matrix. Advise
them to submit their work and provide constructive feedback.
2. Create relevant hands on activities which will arouse students’
interest on the concept of types of matrices, multiplications of
33× matrices, and transpose of 3x3 matrices. Engage students
to use scientific calculators or Maple to obtain the transpose of a
matrix and multiplication of 33× matrices.
3. Use Examples 5.40 to 5.43 in the Student’s Book to guide students
to discuss multiplication and transpose of a 33× matrices.

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Mathematics for Advanced Secondary Schools

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