Помогите с 3 номером

Question

Помогите с 3 номером

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Answer 1

Tg(BOD)=1/2

tg(
tg(AOB)=tg(180°-(
<(AOC)=-tg(BOD+<AOC)=<br>
-(1/2+1/3)/(1-1/2*1/3)=

-(5/6)/(6-1)/6=-1

Comments

-1 будет...Блин ,не то фото прикрепил.

Answer 2

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