Question

Se a = 16 e b = 1,25 quanto vale a elevado a b ?

Answer 1

Temos que $\text{a}^{\text{b}}$

 

Se $\text{a}=16$ e $\text{b}=1,25$, segue que:

 

$\text{a}^{\text{b}}=16^{1,25}$

 

Observe que:

 

$1,25=\dfrac{125}{100}=\dfrac{5}{4}$

 

Logo:

 

$\text{a}^{\text{b}}=16^{1,25}=16^{\frac{5}{4}}=\sqrt[4]{16^5}=16\sqrt[4]{16}=16\cdot2=32$