Обчисліть значення sina якщо, cosa = [tex] \frac{ \sqrt{3} }{2} [/tex], 0 < a < 90°. Created by Pro100Arinos. geometriya-ru

tex], 0 < a < 90°...

July 2022 1 14 Report

Обчисліть значення sina якщо, cosa =
[tex] \frac{ \sqrt{3} }{2} [/tex]
, 0 < a < 90°

Answers & Comments

$cosa=\frac{\sqrt{3} }{2} \;\;\;\; 0 < a< 90\\\\sina\;-\;?\\\\sina=\sqrt{1-cos^2a} =\sqrt{1-(\frac{\sqrt{3} }{2})^2} =\frac{1}{2}\\\\sina=\frac{1}{2}=0.5$

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hto taki ciliteli tvir 4 6 rechen

nazvit element za takimi danimi znahoditsya v 4 grupi vidnosna molekulyarna ma

roztavte koeficient u shemah himichnih reakcijp o2 p2o5fe o2 fe3o4fe h

za yakogo vzayemnogo roztashuvannya dvoh odnakovih shtabovih magnitiv yih vzayemodiya bu

viznachiti poshireni j ne poshireni rechennya1 grego j majstro vitri 2 dub z kal

pole pryamokutnoyi formi z rozmirami 100m ta 300 m potribno zasiyati oziminoyu na 1

chim imponuye meni ostap z tvoru dorogoyu cinoyu tvirpomogite proshu

ukazhit mizh yakimi elementami mozhe utvoritisya kovalentnij polyarnij zvyazok1

ukazhit elementi yaki ne mozhut utvoryuvati joni he co ni h ar alpomogite p

dvoskladnim ye rechennya a ne lamaj kalini ne rubaj topoli b nisho nashogo kozaka

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