Exercise117

Solve the following linear equation:
\(\displaystyle{ {r2}={4} }\)

Evaluate the following expression when \(r=6\text{:}\)
\(\displaystyle{{r2}=}\)
Solve the following linear equation:
\(\displaystyle{ {r2}={4} }\)
Evaluate the following expression when \(r=6\text{:}\)
\(\displaystyle{{r2}=}\)