15页:15×√14-6×√14 =( — )×√14=9√1419×√17×4×√17=( × )×( × )=76×
来源:学生作业帮 编辑:神马作文网作业帮 分类:数学作业 时间:2024/09/29 01:31:15
15页:
15×√14-6×√14
=( — )×√14
=9√14
19×√17×4×√17
=( × )×( × )
=76×17
=( )
( -11 )+(+16)+(-2/5)
=+( - )+(-2/5)
=(+5)+(2/5)
=+( - )
=+( )
(-5)×(+4/5)+(-5)×(-4/5)
=-(5×4/5)+O(5×4/5)
=(-4)+( )
=( )
16页:
计算下列各式:
(+7.3)+(+3.7)
(-42)+(-16)+(+18)
0+(-39.9)
(+2/5)+(-1/6)+(+2/5)+(+1/6)
能简便的简便:
5√13×4×2√13
2√2-√2+10√2
(-1/2)×(-2/3)×(-3/4)×(-4/5)
-(3)²×(-3)²
15×√14-6×√14
=( — )×√14
=9√14
19×√17×4×√17
=( × )×( × )
=76×17
=( )
( -11 )+(+16)+(-2/5)
=+( - )+(-2/5)
=(+5)+(2/5)
=+( - )
=+( )
(-5)×(+4/5)+(-5)×(-4/5)
=-(5×4/5)+O(5×4/5)
=(-4)+( )
=( )
16页:
计算下列各式:
(+7.3)+(+3.7)
(-42)+(-16)+(+18)
0+(-39.9)
(+2/5)+(-1/6)+(+2/5)+(+1/6)
能简便的简便:
5√13×4×2√13
2√2-√2+10√2
(-1/2)×(-2/3)×(-3/4)×(-4/5)
-(3)²×(-3)²
15页:
15×√14-6×√14
=( 15 — 6 )×√14
=9√14
19×√17×4×√17
=( 19 × 4 )×( √17 ×√17 )
=76×17
=( 1292 )
( -11 )+(+16)+(-2/5)
=+( 16 - 11 )+(-2/5)
=(+5)+(2/5)
=+( 25/5 - 2/5 )
=+( 27/5 )
(-5)×(+4/5)+(-5)×(-4/5)
=-(5×4/5)+(5×4/5)
=(-4)+( 4 )
=( 0 )
16页:
计算下列各式:
(+7.3)+(+3.7)=(7+3)+(0.3+0.7)=10+1=11
(-42)+(-16)+(+18)=[(-42)+(-16)]+18=(-58)+18=-40
0+(-39.9)=0-39.9=-39.9
(+2/5)+(-1/6)+(+2/5)+(+1/6)=[(2/5)+(2/5)]+(1/6-1/6)=4/5
能简便的简便:
5√13×4×2√13 =(5*4*2)*(√13×√13) =13*40=520
2√2-√2+10√2=√2*(2-1+10)=11√2
(-1/2)×(-2/3)×(-3/4)×(-4/5)=[(-1/2)*(-2/3)]*[(-3/4)*(-4/5)]=1/3*3/5=1/5
-(3)²×(-3)²=-(3²×3²)=-81
15×√14-6×√14
=( 15 — 6 )×√14
=9√14
19×√17×4×√17
=( 19 × 4 )×( √17 ×√17 )
=76×17
=( 1292 )
( -11 )+(+16)+(-2/5)
=+( 16 - 11 )+(-2/5)
=(+5)+(2/5)
=+( 25/5 - 2/5 )
=+( 27/5 )
(-5)×(+4/5)+(-5)×(-4/5)
=-(5×4/5)+(5×4/5)
=(-4)+( 4 )
=( 0 )
16页:
计算下列各式:
(+7.3)+(+3.7)=(7+3)+(0.3+0.7)=10+1=11
(-42)+(-16)+(+18)=[(-42)+(-16)]+18=(-58)+18=-40
0+(-39.9)=0-39.9=-39.9
(+2/5)+(-1/6)+(+2/5)+(+1/6)=[(2/5)+(2/5)]+(1/6-1/6)=4/5
能简便的简便:
5√13×4×2√13 =(5*4*2)*(√13×√13) =13*40=520
2√2-√2+10√2=√2*(2-1+10)=11√2
(-1/2)×(-2/3)×(-3/4)×(-4/5)=[(-1/2)*(-2/3)]*[(-3/4)*(-4/5)]=1/3*3/5=1/5
-(3)²×(-3)²=-(3²×3²)=-81
√9+2√14=?(√2+√3+√5)乘(3√2+2√3-√30)=?
化简:(√2+√3)/(√10+√14+√15+√21)
√(8-2√15)+√(7-4√3)+√(14-6√5)等于
计算(2√3-2√2)/(√21-√14+√15-√10)
√10+√14+√15+√21/√6+4√3+3√2 计算题
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(5√3+2√5)平方=?(√48+1/4√6)除以√27=?
28、化简(√6+4√3+3√2)/[(√6+√3)(√3+√2)]=
√10+√14+√15+√21分之√10+√14-√15-√21
化简(√10+√14-√15-√21)/(√10+√14+√15+√21)
(√10+√14-√15-√21)/(√10+√14√15√21)化简
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