Binomial Theorem


Find (i) the co-ordinates of the focus.
(ii) the equation of directrix.
(iii) the latus rectum for the parabola.
2 straight y squared plus 5 straight x equals 0


Solution not provided.
Ans. (i) open parentheses negative 5 over 8 comma space 0 close parentheses
        (ii) straight x minus 5 over 8 equals 0
         (iii) 5 over 2

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