Найдите tg a,если cos a=-0,8 і а- кут первой четверти. Created by violetochka12. algebra-ru

Найдите tg a,если cos a=-0,8 і а- кут первой четверти...

violetochka12 @violetochka12

August 2022 1 3 Report

Найдите
tg a,если cos a=-0,8 і а- кут первой четверти

Answers & Comments

Universalka

Verified answer

$Cos\alpha =-0,8\\\\Sin\alpha= \sqrt{1-Cos^{2} \alpha }= \sqrt{1-(-0,8)^{2}}= \sqrt{1-0,64}= \sqrt{0,36}=0,6\\\\tg\alpha= \frac{Sin\alpha} {Cos\alpha} = \frac{0,6}{-0,8}=-0,75$

1 votes Thanks 6

2...

Answer

violetochka12 August 2022 | 0 Ответы

sklasti ukrayinske slovo z bukv lelzhsnesdoa

Answer

violetochka12 July 2022 | 0 Ответы

god na cij shvidkosti vimikayutsya sheplennya i prikladayut silu 8 kn viznachiti shl

Answer

violetochka12 July 2022 | 0 Ответы

2 a sin pa tg actg a

Answer

violetochka12 October 2021 | 0 Ответы

nazvit naukovi vidkrittya yevropejskih uchenihyaki viklikali nevdovolennya katolic

Answer

Answers & Comments

Verified answer

2...

sklasti ukrayinske slovo z bukv lelzhsnesdoa

god na cij shvidkosti vimikayutsya sheplennya i prikladayut silu 8 kn viznachiti shl

2 a sin pa tg actg a

nazvit naukovi vidkrittya yevropejskih uchenihyaki viklikali nevdovolennya katolic

рекомендуемые вопросы

Helpful Links

Helpful Social