Page 32 - Steady Mate Tg1 - Book A

Matematik Tingkatan 1 Bab 3 Kuasa Dua, Punca Kuasa Dua, Kuasa Tiga dan Punca Kuasa Tiga

MESTI TAHU & INGAT
Punca kuasa tiga ialah suatu nombor yang apabila digunakan dalam Misalnya / For example
pendaraban tiga kali menghasilkan nombor yang diberikan itu. 3 3
The cube root is the number when used in a multiplication three times, produces a 343 = 7 × 7 × 7
given number. = 7

J Lengkapkan bagi setiap yang berikut. TP 2 ARAS R
Complete each of the following.

Contoh Contoh Contoh
3 × 3 × 3 = 27 0.9 × 0.9 × 0.9 = 0.729 1 × 1 × 1 = 1
Maka / Thus Maka / Thus 4 4 4 64
Maka / Thus
3 3
27 = 3 3 × 3 × 3 0.729 = 3 0.9 × 0.9 × 0.9
1 1 1 1
3 = 3 × ×
= 3 = 0.9 64 4 4 4
1
=
4

1. 11 × 11 × 11 = 1 331 2. 0.2 × 0.2 × 0.2 = 0.008 1 1 1 1
3. × × =
Maka / Thus Maka / Thus 5 5 5 125
Maka / Thus
3 3
1 331 = 3 11 × 11 × 11 0.008 = 3 0.2 × 0.2 × 0.2
1 3 1 1 1
3 = × ×
125 5 5 5

= 11 = 0.2
= 1
5
Contoh Contoh Contoh

3
(–7) × (–7) × (–7) = –343 0.1 = 0.001 1 3 1
Maka / Thus Maka / Thus 1 2 = 216
6
3 3 3 Maka / Thus
–343 = 3 (–7) × (–7) × (–7) 0.001 = 3 0.1
1 1 3
= –7 = 0.1 3 = 3 1 2
6
216
1
=
6
4. (–8) × (–8) × (–8) = –512 5. 1.5 = 3.375 6. 1 2 3 1
3
1
Maka / Thus Maka / Thus 10 = 1 000
Maka / Thus
3 3 3
–512 = 3 (–8) × (–8) × (–8) 3.375 = 3 1.5 3
1 3 1
3 = 1 2
10
= –8 = 1.5 1 000
1
=
10
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