Ответы 1
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Ответ:
формулы:
sin²a+cos²a=1
1+ctg²a=1/sin²a
Объяснение:
(sin²a+cos²a)+ctg²a=1+ctg²a=1/sin²a
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Автор:
honeyikuu - 1 год назад
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be good at
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playing basketball.
3) Tetiana participated in a swimming competition yesterday.
take part in
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a swimming competition yesterday.
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be interested in
Alice
boxing.
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Timur is really
playing volleyball.
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be a fan of
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Lionel Messi.
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