Question

Qual o numero real expresso por: (2)²-(1/2)²:(+3)²+(-1/6)²?

Answer 1

Vou usar ^ para elevado a

(2)^2-(1/2)^2:(3)^2+ (-1/6)^2=
4-1/4:9+(1/36)=
4-1/4.1/9+(1/36)=
4-1/36+1/36=
144/36-1/36+1/36=
143/36+1/36=
144/36=
4