@ootsusukiurashiki

ootsusukiurashiki

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Доказать тождество даю 10 баллов...
Answer
1)2ctgx+tgx+3=0 2) sinx*sin3x+cos4x=0...
Answer
Докажите тождество (tgα+ctgα)²-(tgα-ctgα)²=4...
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