The ordinate of the point of contact of a tangent is 2 . Then the e...

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The ordinate of the point of contact of a tangent is 2 . Then the equation of the tangent to \( x^{2}+4 y^{2} \) \( =25 \) is
\( \mathrm{P} \)
(a) \( 3 x+8 y=25 \)
(b) \( 8 x+3 y=25 \)
(c) \( 3 x-8 y=25 \)
(d) none of these
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