$\frac{2^{2}}{1×3}$ x $\frac{3^{2}}{2×4}$ x $\frac{4^{2}}{3×5}$ x $\frac{5^{2}}{4×6}$

Question

$\frac{2^{2}}{1×3}$ x $\frac{3^{2}}{2×4}$ x $\frac{4^{2}}{3×5}$ x $\frac{5^{2}}{4×6}$

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Josie 22 phút 2021-09-14T09:15:37+00:00 2 Answers 0 views 0

Answers ( )

    0
    2021-09-14T09:17:07+00:00

    Đáp án:

     

    Giải thích các bước giải:

     `2^2/(1.3)  . 3^2/(2.4).(4^2)/(3.5) .(5^2)/(4.6)`

    `=(2^2 .3^2 .4^2 .5^2)/(1.3 .2.4.3.5.4.6)`

    `=(2.3.4.5)/(1.2.3.4) . (2.3.4.5)/(3.4.5.6) `

    `=5 .2/6`

    `=5/3`

    0
    2021-09-14T09:17:30+00:00

    = 2.2.3.3.4.4.5.5.6.6 / 1.3.2.4.3.5.4.6 

    = 2.5 /6 

    = 10 / 6 = 5/3

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