(1+син х) (1+кос х)=1+син+косх Помогите пожалуйста. Created by Razor36ru. algebra-ru

(1+син х) (1+кос х)=1+син+косх Помогите пожалуйста...

Razor36ru @Razor36ru

August 2022 1 6 Report

(1+син х) (1+кос х)=1+син+косх Помогите пожалуйста

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ShirokovP

Verified answer

(1 + sinx)(1 + cosx) = 1 + sinx + cosx
1 + cosx + sinx + sinxcosx = 1 + sinx + cosx
1 + cosx + sinx + sinxcosx - 1 - sinx - cosx = 0
sinx cosx = 0

1) sinx = 0
x = pik, k ∈ Z

2) cosx = 0
x = pi/2 + pik, k ∈ Z

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Verified answer

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pomogite pozhalujsta pobystree pliz

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pomogite pliz dano koleso s7spicamiskolko spic v koleseesli ugol mezhdu sosed

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