Question

KERJAKAN DENGAN CARANYA.

nyatakan bilangan berikut kepangkat positif.

1. 3^-4
2. 3 x 5^-2
3. a^-3
4. 4/b^-6
5. 1/2 a^-2
6. 1/5b^-4
7. 2^-3 x 2^2
8. 3^-4 : 3^2
9. (a^3 x a^2) : a^12
10. (b^-2)^3 : b^-1
11. (1/y-1)^2 x (y^-3)^4
12. p^-3 x q^2 x 5^-4
13. 3x^2y^-3
14. p^-1 q r^-1
15. 1/4 x^2 y^-3 2^-1

Answer 1

1.  3 : 1000 = 3/1000
2. 3 × 5 : 100 = 15/100
3. a : 1000 = a/1000
4. 4: (b :1000000) = 4 : b/1000000 = 4 × 1000000/b = 4000000/b
5.1/2 × a : 100 = 1/2× a/100 = a/200
Itu setau saya, semoga membantu
*NB : tanda "/" diganti pake tanda per

Answer 2

1. 3⁻⁴ = 1/3⁴ = 1/81
2. 3 x 5⁻² = 3/5² = 3/25
3. a⁻³ = 1/a³
4. 4/b⁻⁶ = 4b⁶
5. 1/2 a⁻² = (1/2)a²
6. 1/5 b⁻⁴ = (1/5)b⁴
7. 2⁻³ x 2² = 2⁻³⁺² = 2⁻¹ = 1/2
8. 3⁻⁴ : 3² = 3⁻⁴⁻² = 3⁻⁶ = 1/3⁶
9. (a³ x a²) : a¹² = a³⁺²⁻¹² = a⁻⁷ = 1/a⁷
10. (b⁻²)³ : b⁻¹ = b⁻⁶ : b⁻¹ = b⁻⁶⁻(⁻¹) = b⁻⁵ = 1/b⁵
11. (1/y⁻¹)² x (y⁻³)⁴ = (1/y⁻²) x (y⁻¹²) = y⁻¹²⁻(⁻²) = y⁻¹⁰ = 1/y¹⁰
12. p⁻³ x q² x 5⁻⁴ = q²/p³5⁴
13. 3x²y⁻³ = 3x²/y³
14. p⁻¹ q r⁻¹ = q/pr
15. 1/4 x² y⁻³ 2⁻¹ = (1/4)x²/2y³ = (1/8)x²/y³