Question

22×根号2等于几

Answer 1

22×根号2等于31.108
22×根号2
=22×√2
=22×1.414
=31.108
所以22×根号2等于31.108

Answer 2

22×√2
＝22√2
≈22×1.414
≈31.11
根号二约等于1.414，22乘以根号2等于22倍根号二，代入当中估算，也就是22×1.414约等于31.11。