GIVEN:The given EXPRESSION is (.4)2 + (.04)2 + (.004)2Calculations:ACCORDING to the question, we have(.4)2 + (.04)2 + (.004)2⇒ 0.16 + 0.0016 + 0.000016⇒ 0.161616∴ The value of (.4)2 + (.04)2 + (.004)2 is 0.161616.