Giải phương trình sau:
sinx=1/2
sinx=2
sinx=-√3/2

i use my brain for prombles like this maybe you could try it

step-by-step explanation:

answer: i dont know but if you try hard you will get it right : )

step-by-step explanation:

m∠abd = m∠dbc

step-by-step explanation:

given : ab bisects ∠dbc

as we know that bisection means ab divides   ∠dbc   in two equal angles named as   ∠dba and   ∠abc

so, m∠abd = m∠dbc  

because ab bisects ∠dbc.

hence , the first statement m∠abd = m∠dbc is true.