9*根号3-7*根号12+5*根号48(根号28+根号7-2*根号3)*根号7(根号6-2*根号15)*根号3-6*根号二分之一(根号24+根号216)/根号6+5
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![9*根号3-7*根号12+5*根号48(根号28+根号7-2*根号3)*根号7(根号6-2*根号15)*根号3-6*根号二分之一(根号24+根号216)/根号6+5](/uploads/image/z/5320963-19-3.jpg?t=9%2A%E6%A0%B9%E5%8F%B73-7%2A%E6%A0%B9%E5%8F%B712%2B5%2A%E6%A0%B9%E5%8F%B748%28%E6%A0%B9%E5%8F%B728%2B%E6%A0%B9%E5%8F%B77-2%2A%E6%A0%B9%E5%8F%B73%29%2A%E6%A0%B9%E5%8F%B77%28%E6%A0%B9%E5%8F%B76-2%2A%E6%A0%B9%E5%8F%B715%29%2A%E6%A0%B9%E5%8F%B73-6%2A%E6%A0%B9%E5%8F%B7%E4%BA%8C%E5%88%86%E4%B9%8B%E4%B8%80%28%E6%A0%B9%E5%8F%B724%2B%E6%A0%B9%E5%8F%B7216%29%2F%E6%A0%B9%E5%8F%B76%2B5)
9*根号3-7*根号12+5*根号48(根号28+根号7-2*根号3)*根号7(根号6-2*根号15)*根号3-6*根号二分之一(根号24+根号216)/根号6+5
9*根号3-7*根号12+5*根号48
(根号28+根号7-2*根号3)*根号7
(根号6-2*根号15)*根号3-6*根号二分之一
(根号24+根号216)/根号6+5
9*根号3-7*根号12+5*根号48(根号28+根号7-2*根号3)*根号7(根号6-2*根号15)*根号3-6*根号二分之一(根号24+根号216)/根号6+5
9√3-7√12+5√48
=9√3-14√3+20√3
=15√3
(√28+√7-2√3)√7
=(2√7+√7-2√3)√7
=(3√7-2√3)√7
=21-2√21
(√6-2√15)√3-6√1/2
=√18-2√45-3√2
=3√2-6√5-3√2
=-6√5
(√24+√216)/√6+5
=(2√6+6√6)/√6+5
=8√6/√6+5
=13
10分还要人家给你写过程啊,好累哦。
1)原式=9*根号3-14*根号3+20*根号3=15*根号3
(12=2x2x3,所以根号12=2*根号3;48=4x4x3)
2)=(2*根号7+*根号7-2*根号3)x根号7=(3*根号7-2*根号3)x根号7 =21-2*根号21
3)=根号18-2*根号45-6x(根号2/2)=3*根号2-6*根号5-3*根号2=-6*根号5
4)...
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1)原式=9*根号3-14*根号3+20*根号3=15*根号3
(12=2x2x3,所以根号12=2*根号3;48=4x4x3)
2)=(2*根号7+*根号7-2*根号3)x根号7=(3*根号7-2*根号3)x根号7 =21-2*根号21
3)=根号18-2*根号45-6x(根号2/2)=3*根号2-6*根号5-3*根号2=-6*根号5
4)这一题不知道分母是根号(6+5)还是(根号6)+5
所以给你列了两种,你自己选一下
1`根号(6+5):(2*根号6+6*根号6)/根号11=8*根号6/根号11=8*根号66/11
2.(根号6)+5:8*根号6/根号6+5=(40*根号6-48)/19(分子分母同乘以根号6-5
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