[(125-45)/(9 x) ]*65= 9*[(125-45)/(9 x)] 45*2怎么解

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[(125-45)/(9x)]*65=9*[(125-45)/(9x)]45*2怎么解[(125-45)/(9x)]*65=9*[(125-45)/(9x)]45*2怎么解[(125-45)/(9x)

[(125-45)/(9 x) ]*65= 9*[(125-45)/(9 x)] 45*2怎么解
[(125-45)/(9 x) ]*65= 9*[(125-45)/(9 x)] 45*2怎么解

[(125-45)/(9 x) ]*65= 9*[(125-45)/(9 x)] 45*2怎么解
题目错,这个不可能成立
因为
[(125-45)/(9+x) ]*65-9*[(125-45)/(9+x)] 45*2=0
5200/(9+x) -64800/(9+x)=0
-59600/(9+x)=0
无解

sin(α+π/3)+sinα=-4√3/5
sinαcosπ/3+cosαsinπ/3+sinα=-4√3/5
3/2*sinα+√3/2*cosα=-4√3/5
3/2*sinα=-√3/2*cosα-4√3/5
两边平方
9/4*sin²α=9/4(1-cos²α)=3/4*cos²a+12/5*cosx+48/25
cos²α+4/5*cosα-11/100=0
α是第四象限
cosα>0
cosα=(-4+3√3)/5