#1**-5 **

You are proably asking for the square root of 2.5 well this is a form of mental gymnastic's which can be done by a calculator these are like multiplication tables you have meorize them to complete them with out a calculator where you round them is your choice but the answer 1.58113883

Which is rounded to the hundreth milloth. value.

HiylinLink Mar 19, 2019

#2**+2 **

Using the calculator on this website

Using the syntax you have written:

sqrt(3.7)-1.2 = 0.7235384061671345

But MAYBE you MEANT:

sqrt(3.7-1.2) = 1.5811388300841897

ElectricPavlov Mar 19, 2019