x=asin(c)+bcos(c) y=acos(c)+bsin(c) (0

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x=asin(c)+bcos(c)y=acos(c)+bsin(c)(0x=asin(c)+bcos(c)y=acos(c)+bsin(c)(0x=asin(c)+bcos(c)y=acos(c)+b

x=asin(c)+bcos(c) y=acos(c)+bsin(c) (0
x=asin(c)+bcos(c) y=acos(c)+bsin(c) (0

x=asin(c)+bcos(c) y=acos(c)+bsin(c) (0
解关于 sinc cosc的方程,用x、y表示
然后 代入 sin^2 c+cos^2 c=1 得到要求的方程,然后化简