Question

Va rog nu stiu sa le rezolv....​

Answer 1

Răspuns:

Explicație pas cu pas:

a)

prima paranteza 27/6√6 - 8/6√6 - 12/6√6 = 7/6√6

a doua paranteza 12/3√54 - 18/54 = 4/√54 - 18/√54 = -14/√54 = -14/3√6

= -28/6√6

7/6√6 + 28/6√6 = 35/6√6 = 35√6/36

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b)

54/6√6 - 48/6√6 - 36/6√6 = -30/6√6 = -5/√6

8/5√6 - 24/10√6 = 8/5√6 - 12/5√6 = -4/5√6

3/√6 - 12/3√6 = 3/√6 - 4/√6 = -1/√6

-5/√6 + 4/5√6 + 1/√6 = -4/√6 + 4/5√6 = -20/5√6 + 4/5√6 = -16/5√6 = -16√6/30 = -8√6/15

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c)

2/3√2 + 5/√8 = 2/3√2 + 5/2√2 = 4/6√2 + 15/6√2 = 19/6√2

3√2/2 - 1/3√2 = 18/6√2 - 2/6√2 = 16/6√2

19/6√2 - 16/6√2 = 3/6√2 = 1/2√2 = √2/4