Найдите значение выраженияsin 30°+tg 60°*cos 30° tg 135°*cos 45°+sin 135°. Created by KARIESHA. algebra-ru

Найдите значение выраженияsin 30°+tg 60°*cos 30° tg 135°*cos 45°+sin 135°...

KARIESHA @KARIESHA

August 2021 1 26 Report

Найдите значение выражения
sin 30°+tg 60°*cos 30°
tg 135°*cos 45°+sin 135°

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$sin30+tg60*cos30= \frac{1}{2}+ \sqrt{3}* \frac{ \sqrt{3} }{3}= \frac{1}{2}+ \frac{1}{3}= \frac{5}{6}\\\\tg135*cos45+sin135=tg(180-45)*cos45+sin(180-45)=\\=-tg45*cos45+sin45=-1* \frac{ \sqrt{2} }{2}+ \frac{ \sqrt{2} }{2}=0$

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najdite katet pryamougolnogo treugolnika uchityvaya chto ego vtoroj katet i gipof13f60120cb983eab8e4a9bf5e34bd9e 59472

najti 10 strok aspushkina o prirodekotorye predstavlyayut soboj ssp i sdelat ih

najdite katet pryamougolnogo treugolnika uchityvaya chto ego vtoroj katet i gipo

dve smezhnye storony chetyryohugolnikaopisannogo v okruzhnostiravny 18 sm i 34 sm

ukazhite posledovatelnye ugly chetyryohugolnikavpisannogo v okruzhnostuchityvaya

pomogite pozhalujstaochen srochno954

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