Даны точки А (3;1) В (7;4) С (3;2) D (6;6) вычислить угол между векторами АВ и С...

July 2022 1 1 Report

Даны точки А (3;1) В (7;4) С (3;2) D (6;6) вычислить угол между векторами АВ и СD. желательно с чертежиком

Answers & Comments

NNNLLL54

Verified answer

$AB=(7-3,4-1)=(4,3)\\CD=(6-3,6-2)=(3,4)\\\\|AB|=\sqrt{4^2+3^2}=5,\; \; |CD|=\sqrt{3^2+4^2}=5\\\\AB\cdot CD=12+12=24\\\\cos \alpha =\frac{24}{5\cdot 5}=\frac{24}{25}\\\\ \alpha =arccos\frac{24}{25}$

5 votes Thanks 9

pomogitevo vtorichnoj obmotke transformatora voznikaet edch inlukcii 600 ne uchi

Answer

KiSs15RaIn July 2022 | 0 Ответы

pomogite pozhalujstaochen srochno nado ponoe reshenie zaranee spasibo

Answer

KiSs15RaIn July 2022 | 0 Ответы

chto vpisyat this is the letter my father my brother isleft they will co

Answer

Answers & Comments

Verified answer

chto vpisyvat vmesto tochek anngot two brothers maryher breakfast at seven

pomogite pozhaujsta kratko otvetit ga vopros principy i primery ispolzovaniya v

pomogite pozhalujsta ochen nuzhno 245678 budu ochen blagodarnahotya by ch

i visit my friends vo vseh vseh vremenah

pomogite pozhalujstaochen srosno nado

2 q2e obyasnite iz kakih formul eto vyhodi

pomogite pozhalujstazhelatelno podrobnobb9356f27bc758eab4b949e688bcfa2a 43062

pomogitevo vtorichnoj obmotke transformatora voznikaet edch inlukcii 600 ne uchi

pomogite pozhalujstaochen srochno nado ponoe reshenie zaranee spasibo

chto vpisyat this is the letter my father my brother isleft they will co

рекомендуемые вопросы

Helpful Links

Helpful Social