Задача 37583 2 sqrt(3)tg(-300)...

ege_man

2019-05-26 12:07:15

2 sqrt(3)tg(-300)

sova

2019-05-26 12:33:05

tg(-300 ° )=- tg(300 ° )= - tg (360 ° -60 ° )= - tg(-60 °)= -(-tg60 °)=tg60°= =sqrt(3)

2sqrt(3)tg(-300 ° )=2sqrt(3)*sqrt(3)=2*3= [b]6[/b]

vk175071266

2019-05-26 13:29:10

2 sqrt(3)tan(-300°)=-2 sqrt(3)tan(180°+120°)= -2 sqrt(3)tan(120°)=-2 sqrt(3)*(- sqrt(3))=2*3=6