Question

evaluate : (i) (3/5)^-2 (ii) (-3)^-3 (iii) (2/7)^-4
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Answer 1

Answer:

3/5²=3/10

2) -3/3=-1

3) 2/7⁴=2/2401

Answer 2

$\huge\qquad \mathbb{\fcolorbox{red}{lavenderblush}{✰Answer}}$

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(i).

• $\sf{(\dfrac{3}{5})^{-2}   }$ 

• $\sf{\dfrac{1}{(\dfrac{3}{5})^{2}}   }$ 

• $\sf{(\dfrac{5}{3})^{2}   }$ 

• $\sf{\dfrac{5^{2}}{3^{2}}   }$ 

• $\bold{\dfrac{25}{9}   }$ 

(ii).

• $\sf{(-3)^{-3}   }$ 

• $\sf{\dfrac{1}{(-3)^{3}}   }$ 

• $\bold{\dfrac{1}{-27}   }$ 

(iii).

• $\sf{(\dfrac{2}{7})^{-4}   }$ 

• $\sf{\dfrac{1}{(\dfrac{2}{7})^{4}}   }$ 

• $\sf{(\dfrac{7}{2})^{4}   }$ 

• $\sf{\dfrac{7^{4}}{2^{4}}   }$ 

• $\bold{\dfrac{2401}{16}   }$ 

 

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