Question

Помогите 2√1*9/16-1

Answer 1

=2√9/15=2√3/5=2√0,6=2*0,774=1,549как то так

Answer 2

2√1×9/16-1=√4×9/(4-1)(4+1)=2×9/(4+1)(4-1)=18/16-1=18/15=6/5