Question

dada a expressao algébrica a⁻¹ - a¹ᐟ², determine o valor quando a = 9

Answer 1

Olá Estudante!

☠ Se a = 9, portanto:

$\huge {\boxed {\sf \bf a^{-1} - a^{\frac{1}{2}} = \cfrac{1}{9} - \sqrt[\sf \bf 2]{ \sf \bf 9} = \cfrac{1}{9} -3= \cfrac{1-27}{9} = \cfrac{-26}{9} }}$

$\huge {\boxed {\gray {\sf \cfrac{-26}{9} \approx -2,888888 \dots }}}$

• Att. MatiasHP