Problem: Proof, fourth powers cannot be negative
Problem
Prove that for any real number \(a\) ,
\[a^4≥0\]
Hint: \(a^4={\left( a^2 \right)}^2\)
Solution
Problem
Prove that for any real number \(a\) ,
\[a^4≥0\]
Hint: \(a^4={\left( a^2 \right)}^2\)
Solution