Recent content by physics_nil

@Simon_Tyler The step comes in a intermediate step of a long program. Unless the answer in simplification is zero, the final answer is too complicated to read. Any suggestion?

@phyzguy Then why Assuming[x>0,Sqrt[x^2] //Simplify] is x? I think mathematica only considers positive sqrt.

Your statement is not true as i have specified a>0,b>0,c>0 If you ask mathematica to simplify x-Sqrt[x^2] with assumption x>0, it indeed gives zero!

Assuming[a>0 && b>0 && c>0, FullSimplify[a+Sqrt[b+c]-Sqrt[a^2+b+c+2 a Sqrt[b+c]]]] does not simplify it to zero. Although output of FullSimplify[a+Sqrt[b+c]-Sqrt[a^2+b+c+2 a Sqrt[b+c]]==0] is true, even without any assumptions. Can anyone please resolve this puzzle...Thanks