Sagot :
Answer:
[tex] \bold \color{red}{\sqrt{2} }[/tex]
Step-by-step explanation:
[tex]\bold\color{green}{\sqrt{ 1989 \div 1989 \times 1+1 \times 1 } }[/tex]
- Divide 1989 by 1989 to get 1, and multiple 1 by 1.
[tex]\bold\color{green}{\sqrt{1+1} }[/tex]
- And Add 1 by 1 to get 2.
[tex] \bold \color{red}{\sqrt{2} }[/tex]
[tex]\begin{gathered} \: \end{gathered}[/tex]
[tex]\underline{\boxed{\green{\rm{Carry \: \: On \: \: Learning}}}}[/tex]