Two tangents can be drawn from any external point on \( \mathrm{P} ...

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Two tangents can be drawn from any external point on
\( \mathrm{P} \) ellipse \( \frac{x^{2}}{a^{2}}+\frac{y^{2}}{b^{2}}=1 \), which can be observed by equation

W \( y=m x+\sqrt{a^{2} m^{2}+b^{2}} \), since this is quadratic.
The equation of tangents from the point \( (2,2) \) to the ellipse \( 4 x^{2}+9 y^{2}=36 \)
(1) \( y=2 \)
(2) \( x=2 \)
(3) \( 8 x+5 y=26 \)
(4) \( 8 x+5 y=13 \)
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