Найдите значение выражения : sin a +cos a , если sin a *cos a =0,48. ( знак *

duvefihev @duvefihev

July 2022 1 2 Report

Найдите значение выражения : sin a +cos a , если sin a *cos a =0,48. ( знак * - это умножить)

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oganesbagoyan

Verified answer

Sin²α +cos²α=1
(sin²α +2sinα*cosα+cos²α) -2sinα*cosα =1 ;
(sinα+cosα)² =1+2sinα*cosα ;
sinα+cosα = ±√(1+2sinα*cosα) ;
sinα+cosα = ±√(1+2*0,48) =±√1,96 =±1,4.

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duvefihev July 2022 | 0 Ответы

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duvefihev July 2022 | 0 Ответы

Answers & Comments

Verified answer

napishite sochinenie pro teatr3c540ddc0ae048dbdba34652d1e7a625 50906

ispravte oshibki orfografiyapunktuacii s togo chasu ya pochav cikavitisya teatrom

pomogite reshit uravnenie46cf76a87857d3dfb2b4214acd39b578 3942

ch4149beb6ebf5f4e4b6004c8bb7481763 93149

na stoli lezhat dvi knizhki yaksho yih poklasti odna na odnu to voni stvoryuvatimut08fe00780ff55c7ea4c2a34f64a6a218 36189

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