The equation to the straight line passin...

The equation to the straight line passing through the point `(a "cos"^(3) theta, a "sin"^(3) theta)` and perpendicular to the line `x "sec" theta + y"cosec" theta = a` is

`x cos theta - y sin theta =a cos 2 theta`

`x cos theta + y sin theta =a cos 2 theta `

`x sin theta + y cos theta = a cos 2 theta `

None of these

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