Page 7 - Praktis Hebat 2021 - Mathematics F5

Mathematics Form 5 Practice 2 Matrices
30. Dimo’s Pizza offers two types of sets, A and RM5. Antara yang berikut, yang manakah
B. Set A consists of 3 regular pizzas and 7 side kaedah yang betul untuk mengira harga bagi
dishes while set B consists of 5 regular pizzas set A, x dan set B, y? PL 5
and 5 side dishes. A regular pizza costs RM12 x 3 7 12
while a side dish costs RM5. Which of the A 1 2 = 1 5 5 21 2
y
5
following is the correct method to calculate the
price of set A, x and set B, y? x 12 3 7
5
y
Kedai Pizza Dimo menawarkan dua jenis set, B 1 2 = 1 21 5 5 2
A dan B. Set A mengandungi 3 pizza biasa x 3 5 12
dan 7 hidangan sampingan manakala set B C 1 2 = 1 7 5 21 2
5
y
mengandungi 5 pizza biasa dan 5 hidangan
5
3
x
sampingan. Sebiji pizza biasa berharga RM12 D 1 2 = 1 7 5 21 2
manakala satu hidangan sampingan berharga y 5 12
PAPER 2

1. (a) Given that the determinant of the matrix (b) If P1 2 = 1 4
–2
textbook 1 4 5 f –3g 2, determine the values of
pp. 42 – 66 c 3 2 is 17. Find the value of c.
Diberi bahawa penentu bagi matriks f and g. PL 4 Subtopic 2.2
4
–2
1 4 5 2 ialah 17. Cari nilai c. Jika P1 2 = 1 2, tentukan nilai f dan g.
–3g
f
3
c
[6 marks / markah]
PL 3 Subtopic 2.2
(b) Hence, by using the matrix method,
calculate the values of d and e which
satisfy the following equation.
Seterusnya, dengan menggunakan
kaedah matriks, hitung nilai d dan e –3 4
yang memenuhi persamaan matriks yang 3. (a) If matrix Q is 1 5 2 2, find the matrix R
1 0
berikut. PL 4 Subtopic 2.2 textbook such that QR = 1 0 1 2. PL 4 Subtopic 2.2
pp. 42 – 66
7
d
1 4 5 21 2 = 1 2 –3 4
e
11
c
3
[5 marks / markah] Jika matriks Q ialah 1 5 2 2, cari matriks
1 0
R dengan keadaan QR = 1 0 1 2.
(b) By using the matrix method, calculate the
values of h and k which satisfy the following
equation. PL 5 Subtopic 2.2
Dengan menggunakan kaedah matriks,
hitung nilai h dan k yang memenuhi
persamaan yang berikut.
1 3 3 –2 –3 4 h 15
2. Given that N = 1 2 –1 2 and P = 1 –1 1 2. 1 5 2 21 2 = 1 2
k
1
textbook
pp. 42 – 66 1 3 3 –2 [6 marks / markah]
Diberi N = 1 2 –1 2 dan P = 1 –1 1 2.
(a) Calculate 2N + P. PL 4 Subtopic 2.2
Hitung 2N + P.

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02 P Hebat MATH F5.indd 13 28/04/2021 5:29 PM