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korotkova80
@korotkova80
August 2022
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(sin (п + а)+cos (п/2+а))2 + (cos(2п-а) -sin(3g/2-a))2
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pomoshnik09
(-sinα-sinα)²+(cos α+cosα)²= (-2sinα)²+(2cosα)²=4(sin²α+cos²α)=4*1=4
10 votes
Thanks 24
korotkova80
спасибо!!!
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