y=(2sinx+1)/(2sin-1)怎么变形的sinx=y+1/2(Y-1)

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y=(2sinx+1)/(2sin-1)怎么变形的sinx=y+1/2(Y-1)
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y=(2sinx+1)/(2sin-1)怎么变形的sinx=y+1/2(Y-1)
y=(2sinx+1)/(2sin-1)怎么变形的sinx=y+1/2(Y-1)

y=(2sinx+1)/(2sin-1)怎么变形的sinx=y+1/2(Y-1)
y(2sinx-1)=2sinx+1
2ysinx-y=2sinx+1
2ysinx-2sinx=y+1
2(y-1)sinx=y+1
sinx=(y+1)/2(y-1)

互为倒数则相乘为1
(x+3)/(x+2)(x-2)×(x+2)/2(x+3)=1
约分
1/2(x-2)=1
2(x-2)=1
x-2=1/2
x=5/2
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