Question

como resolver: 16 elevado a 1,25 ????

Answer 1

Seja $\text{x}=16^{1,25}$

 

Observe que:

 

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

 

Logo:

 

$\text{x}=16^{1,25}=16^{\frac{5}{4}}$

 

Note que:

 

$16^{\frac{5}{4}}=\sqrt[4]{16^5}=16\cdot\sqrt[4]{16}=16\cdot2=32$.

 

Logo, $\text{x}=16^{1,25}=32$