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Two straight lines u=0a n dv=0 pass thro...

Two straight lines `u=0a n dv=0` pass through the origin and the angle between them is `tan^(-1)(7/9)` . If the ratio of the slope of `v=0` and `u=0` is `9/2` , then their equations are (a) `y+3x=0` and `3y+2x=0` (b)`2y+3x=0` and `3y+x=0` (c)`2y=3x` and `3y=x` (d) `y=3x` and `3y=2x`

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