[tex] \sqrt{9 - 2 \sqrt{20} } - \sqrt{9 + 2 \sqrt{20} } [/tex]помогите пж..... Created by Jaska70.

tex]помогите пж....

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[tex] \sqrt{9 - 2 \sqrt{20} } - \sqrt{9 + 2 \sqrt{20} } [/tex]
помогите пж....

kamixxie ответ -4………………………………………

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