化简(1)3√2/9+√50-√72 (2)√484-(√49/4-√20.2) (3)2^2 +2√ 3+(6-π)^0-√12(4)√18/[(- √45/(2√20)] (5)3√40-√2/5-2√1/10 (6)√0.5+2√2/3+√24-√0125 (7)(5√8-√50)-(6√1/2-√9/2),要化简啊
问题描述:
化简(1)3√2/9+√50-√72 (2)√484-(√49/4-√20.2) (3)2^2 +2√ 3+(6-π)^0-√12
(4)√18/[(- √45/(2√20)] (5)3√40-√2/5-2√1/10 (6)√0.5+2√2/3+√24-√0125 (7)(5√8-√50)-(6√1/2-√9/2),要化简啊
答
(1)3√(2/9)+√50-√72 =√2+5√2-6√2=0(2)√484-[√(49/4)-√(20/2)]=22-7/2+√10=37/2+√10(3)2^2 +2√ 3+(6-π)^0-√12=4+2√3+1-2√3=4+1=5(4)√18/[(- √45/(2√20)] =3√2/[-3√5/4√5]=-12√2/3=...