Question

Окей, дам много балов) только помогите))​

Answer 1

$2Sinfrac{5pi }{6} -4Cosfrac{2pi }{3}+6Sinfrac{3pi }{4}-Ctgfrac{2pi }{3} +tgfrac{5pi }{6}=2Sin(pi-frac{pi }{6})-4Cos(pi-frac{pi }{3})+6Sin(pi-frac{pi }{4})-Ctg(pi-frac{pi }{3})+tg(pi-frac{pi }{6})=2Sinfrac{pi }{6}+4Cosfrac{pi }{3}+6Sinfrac{pi }{4}+Ctgfrac{pi }{3} -tgfrac{pi }{6}=2*frac{1}{2}+4*frac{1}{2}+6*frac{sqrt{2}}{2}+frac{sqrt{3}}{3}-frac{sqrt{3}}{3}=1+2+3sqrt{2}=3+3sqrt{2}=3(1+sqrt{2})$

Answer 2

Мерси!