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music7777777
@music7777777
September 2021
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упростите выражение: (2sina-sin2a)/(cosa -1)
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Dasha621
Verified answer
(2sina-sin2a)/(cosa-1)=(2sina-2sina*cosa)/(cosa-1)=2sina(1-cosa)/
/(cosa-1)=-2sina(cosa-1)/(cosa-1)=-2sina
ответ -2sina
31 votes
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Answers & Comments
Verified answer
(2sina-sin2a)/(cosa-1)=(2sina-2sina*cosa)/(cosa-1)=2sina(1-cosa)//(cosa-1)=-2sina(cosa-1)/(cosa-1)=-2sina
ответ -2sina