Answer:
1/√5+√3= 1/√5+√3×√5-√3/√5-√3 = √5-√3/(√5)^2-(√3)^2 {(a+b)(a-b)= (a)^2-(b)^2} =√5-√3/5-3 =√5-√3/2 ans... Do you satisfied to my given answer
Step-by-step explanation:
 
        
                    
             
        
        
        
The greatest whole number that number that rounds to 621,860 is 621,864
        
             
        
        
        
-2 !!!!!!!!!!!!!!!!!!!!!!!