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mikomikomiilk
@mikomikomiilk
June 2023
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2. Упрорстите выражение: a) sin (3/2π- a) - cos(π + a) б)sin2a + (sin a - cos а)²
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leelith7
a) sin (3/2π- a) - cos(π + a)=
-cosα+cosα=0
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Answers & Comments
a) sin (3/2π- a) - cos(π + a)=
-cosα+cosα=0