Find the equations of two straight lines...

Find the equations of two straight lines drawn through the point `(0, a)` such that theperpendiculars from the point `(2a, 2a)` on them are each of length a. Also prove that theequation of the straight line joining the feet of these perpendiculars is `y+ 2x = 5a`.

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The correct Answer is:

`4x+ 3a`

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