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The line tangent to the curves y^3-x^2y+...

The line tangent to the curves `y^3-x^2y+5y-2x=0` and `x^2-x^3y^2+5x+2y=0` at the origin intersect at an angle `theta` equal to (a) `pi/6` (b) `pi/4` (c) `pi/3` (d) `pi/2`

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