Question

Calcule a diferença entre Raiz Quadrada de 400 e 16 elevado a 0,5

Answer 1

$\Large\boxed{\begin{array}{l}\sf0,5=\dfrac{5\div5}{10\div5}=\dfrac{1}{2}\\\\\sf 16^{0,5}=16^{\frac{1}{2}}=\sqrt{16}=4\\\sf \sqrt{400}=20\\\sf\sqrt{400}-16^{0,5}=20-4=16\checkmark\end{array}}$