计算:(1)根号8+根号8分之1 (2)根号0.2-根号5 化简:(3)3根号2X-5根号8X (4)根号X+根号X三次
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计算:(1)根号8+根号8分之1 (2)根号0.2-根号5 化简:(3)3根号2X-5根号8X (4)根号X+根号X三次方 (5)2分之1根号ab-根号ab
计算:6根号3减根号0.12
根号24+(3根号6分之1减根号2又2分之3)
根号20减(2根号0.2减根号3又5分之1)
根号48减4根号3分之1)减(3根号3分之1减4根号0.5)
计算:6根号3减根号0.12
根号24+(3根号6分之1减根号2又2分之3)
根号20减(2根号0.2减根号3又5分之1)
根号48减4根号3分之1)减(3根号3分之1减4根号0.5)
(1)(√8)+[√(1/8)]
=(√8)+(√8)/8
=(9√8)/8
(2)√0.2-√5
=[√(1/5)]-(√5)
=(√5)/5-(√5)
=-4√5/5
(3)3√2x-5√8x
=3√2x-10√2x
=-7√2x
(4)(√x)+(√x)³
=(√x)+x(√x)
=(1+x)√x
(5)(1/2)*√(ab)-√(ab)
=(1/2-1)√(ab)
=(-1/2)√(ab)
(6)6√3-√0.12
=6√3-√(12/100)
=6√3-√(3/25)
=6√3-(√3)/5
=(6-1/5)√3
=(29/5)√3
√24+[3√(1/6)-√(8/3)]
=2√6+[(1/2)*(√6)-(2/3)*(√6)]
=(2+1/2-2/3)*√6
=(11/6)√6
√20-[2√0.2-√(16/5)]
=2√5-(2/5)√5+(4/5)√5
=(12/5)√5
[√48-4√(1/3)]-[3√(1/3)-4√0.5]
=[4√3-(4/3)√3]-[√3-2√2]
=(5/3)√3+2√2
=(√8)+(√8)/8
=(9√8)/8
(2)√0.2-√5
=[√(1/5)]-(√5)
=(√5)/5-(√5)
=-4√5/5
(3)3√2x-5√8x
=3√2x-10√2x
=-7√2x
(4)(√x)+(√x)³
=(√x)+x(√x)
=(1+x)√x
(5)(1/2)*√(ab)-√(ab)
=(1/2-1)√(ab)
=(-1/2)√(ab)
(6)6√3-√0.12
=6√3-√(12/100)
=6√3-√(3/25)
=6√3-(√3)/5
=(6-1/5)√3
=(29/5)√3
√24+[3√(1/6)-√(8/3)]
=2√6+[(1/2)*(√6)-(2/3)*(√6)]
=(2+1/2-2/3)*√6
=(11/6)√6
√20-[2√0.2-√(16/5)]
=2√5-(2/5)√5+(4/5)√5
=(12/5)√5
[√48-4√(1/3)]-[3√(1/3)-4√0.5]
=[4√3-(4/3)√3]-[√3-2√2]
=(5/3)√3+2√2
计算:(1)根号8+根号8分之1 (2)根号0.2-根号5 化简:(3)3根号2X-5根号8X (4)根号X+根号X三次
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