Question

if 4÷5=a×a÷16 then check wheather a is rational or irrational number ​

Answer 1

Step-by-step explanation:

4/5=a²/16

4=5a²/16

64/5=a²

8/root5=a

Answer 2

Step-by-step explanation:

4/5=a*a/16

16*4=5*a*a

48=5a*a

48/5=a*a

√48/√5=a

therefore, a is a irrational number