Question

[Nguyen Duc Trung Thanh]

Cho Ox va Oy la hai tia doi nhau.Tren cung mot nua mat phang bo la duong thang xy ve hai tia Oz va Ot sao cho goc xOz=150 do;goc yOt=60 do.

a)Tinh so do goc xOt.

b)Chung to Oz la tia phan giac cua goc yOt.

c)Tren nua mat phang co chua tia Oz bo la duong thang xy ve tia Om sao cho goc zOm=90 do.Hoi tia Om co la tia phan giac cua goc xOt hay khong?Vi sao?

Answer 1

[๖²⁴ʱ๖ۣۜTɦủү❄吻༉]

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