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222-9+11+12:2*14+14 = ? ( )

Toán Lớp 9: Tính: `a)` $\dfrac{\sqrt{3}}{\sqrt{48}}$ `b)` $\dfrac{\sqrt{3024}}{\sqrt{84}}$ `c)` $\sqrt{\dfrac{{15^6}}{{3^6.5^4}}}$ Latex sẵn làm

Toán Lớp 9: Tính:
a) $\dfrac{\sqrt{3}}{\sqrt{48}}$
b) $\dfrac{\sqrt{3024}}{\sqrt{84}}$
c) $\sqrt{\dfrac{{15^6}}{{3^6.5^4}}}$
Latex sẵn làm gáp giúp dới:3
a) \dfrac{\sqrt{3}}{\sqrt{48}}
b) \dfrac{\sqrt{3024}}{\sqrt{84}}
c) \sqrt{\dfrac{15^6}{3^6.5^4}}

Comments ( 2 )

  1. Giải đáp:
    a) $\frac{\sqrt{3}}{\sqrt{48}}$ = $\frac{\sqrt{3}}{\sqrt{ 4² . 3}}$ = $\frac{\sqrt{3}}{4\sqrt{ 3}}$ = $\frac{1}{4}$
    b) $\frac{\sqrt{3024}}{\sqrt{84}}$ = $\frac{\sqrt{12².21}}{\sqrt{ 2² . 21}}$ =$\frac{12\sqrt{21}}{2\sqrt{ 21}}$ = $\frac{12}{2}$ = 6
    c) $\sqrt{\dfrac{15^6}{3^6.5^4}}$ = $\sqrt{\dfrac{3^6 . 5^6}{3^6.5^4}}$ = \sqrt{5^2} = 5

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222-9+11+12:2*14+14 = ? ( )

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