tính A=5/(√7-√5)-(7-√7)/(√7-1)+6√1/2

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tính
A=5/(√7-√5)-(7-√7)/(√7-1)+6√1/2

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Orla Orla 4 years 2020-10-15T02:11:44+00:00 1 Answers 88 views 0

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  1. Maris
    0
    2020-10-15T02:13:27+00:00
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    `A=5/(√7-√5)-(7-√7)/(√7-1)+6√1/2`

    `A=(5(√7+√5))/((√7+√5)(√7-√5))-(√7(√7-1))/(√7-1)+6√2/4`

    `A=(5√7+5√5)/(7-5)-√7+(6√2)/2`

    `A=(5√7+5√5)/2-(2√7)/2+(6√2)/2`

    `A=(5√7+5√5-2√7+6√2)/2`

    `A=(3√7+5√5+6√2)/2`

     

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