Помогите срочно! Только Б,В.. Created by deevil. matematika-ru

Помогите срочно! Только Б,В...

August 2022 1 8 Report

Помогите срочно! Только Б,В.

Answers & Comments

sedinalana 2/(tg²x+1)=sin2x
2:1/cos²x=sin2x
2cos²x-2sinxcosx=0
2cosx(cosx-sinx)=0
cosx=0
x=π/2+πk,k∈z
cosx-sinx=0/cosx
1-tgx=0
tgx=1
x=π/4+πk,k∈z
---------------------------------
-9π/2≤π/2+πkπ-3π/2
-9≤1+2k≤-3
-10≤2k≤-4
-5≤k≤-2
k=-5⇒x=π/2-5π=-9π/2
k=-4⇒x=π/2-4π=-7π/2
k=-3⇒x=π/2-3π=-5π/2
k=-2⇒x=π/2-2π=-3π/2

-9π/2≤π/4+πk≤-3π/2
-18≤1+4k≤-6
-19≤4k≤-5
-19/4≤k≤-5/4
k=-4⇒x=π/4-4π=-15π/4
k=-3⇒x=π/4-3π=-11π/4
k=-2⇒x=π/4-2π=-7π/4

0 votes Thanks 0

Answers & Comments

pomogite srochno1e644ad5a0e40be7d156b4cf829f4bad 82718

pomogite srochnoaa2fbe25182a04970d100e1674c22873 79148

pomogite sroch02f903e1358246d7c95fffed59ca02bf 7320

pomogite srochno tolko v

pomogite srochno6e159669f2dcd29ef03ef3fc4948f518 38643

11 kak obrazuetsya peptidnaya svyaz

pomogite reshitsrochno tolko b i v

pomogite reshitsrochno67f0f41434252f8111a7b4fd45ef0407 63487

chto takoe diffuziya chem ona vazhna

chem obyasnyaetsya sposobnost vody rastvoryat mnogie veshestva i kogda voda nespos5fcc7f7a3e0a010bb76c8e11efb1fbdf 24231

рекомендуемые вопросы

Helpful Links

Helpful Social