cos2x =sin (П+ x) решите плизз. Created by 199911071. algebra-ru

cos2x =sin (П+ x) решите плизз...

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August 2022 1 5 Report

cos2x =sin (П+ x) решите плизз

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oganesbagoyan

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Cos2x =sin(π+x) ;
1 -2sin²x = -sinx ;
2sin²x -sinx -1 =0 ; * * * t = sinx , -1 ≤ t ≤ 1 * * *
[ sinx = -1/2 ; sinx =1 .
[ x =(-1)^(n+1)π/6+πn ; x=π/2+2πn , n∈Z.

ответ : (-1)^(n+1)π/6+πn ; π/2+2πn , n∈Z.

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ukazhite stil teksta zima na ishode sonno zhmuritsya solnce v lesu sonno resnic

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