Срочно помогите пожалуйста!!!! sin^2a+ 1/sin^2a, если sina- 1/sina=-3. Created by JuliaKaraulova. algebra-ru

sina=-3...

JuliaKaraulova @JuliaKaraulova

August 2022 1 9 Report

Срочно помогите пожалуйста!!!!
sin^2a+ 1/sin^2a, если sina- 1/sina=-3

Answers & Comments

NNNLLL54

Verified answer

$sina- \frac{1}{sina}=-3\\\\(sina-\frac{1}{sina})^2=sin^2a -2\cdot sina\cdot \frac{1}{sina}+ \frac{1}{sin^2} =\\\\=sin^2a-2+ \frac{1}{sin^2a} \\\\\\sin^2a+ \frac{1}{sin^2a}=(sina-\frac{1}{sina} )^2+2=(-3)^2+2=9+2=11$

2 votes Thanks 1

JuliaKaraulova спасибо

obshee chislo elektronov v sostave vodorodnogo soedineniya ravno 18 formula vyssheg

Answer

JuliaKaraulova July 2022 | 0 Ответы

2...

Answer

JuliaKaraulova July 2022 | 0 Ответы

(x^2+1)...

Answer

JuliaKaraulova October 2021 | 0 Ответы

rasschitajte chislo atomov kisloroda v 224 ml nu vozduhaesli obemnaya dolya et

Answer

Answers & Comments

Verified answer

kakoj obem zajmet pri nu hcl massoj 146gr

x5x 2 fxx23x 1 fxx3x pomogite reshit pozhalujsta

pomogite s integralami pozhalujsta srochno nado

v kakom sluchae reakciya v rastvore protekaet neobratimo a h2ocl2 gt b na

kak vy ponimaete frazy chest i blagorodstvo

k 300gr 20 go rastvora kcl dobavili 35gr etoj zhe soli najti koncentraciyu sol

obshee chislo elektronov v sostave vodorodnogo soedineniya ravno 18 formula vyssheg

2...

(x^2+1)...

rasschitajte chislo atomov kisloroda v 224 ml nu vozduhaesli obemnaya dolya et

рекомендуемые вопросы

Helpful Links

Helpful Social