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If sum of the squares of the perpendicul...

If sum of the squares of the perpendiculars on any tangent to the elipse `(x ^(2))/((67)^(2)) + (y ^(2))/((33)^(2)) =1` from the points on the minor axis, each at a distcne `10sqrt34` from the centre is 4489 l then value of is `"_________"`

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To solve the problem, we need to find the value of \( I \) given that the sum of the squares of the perpendiculars from points on the minor axis of the ellipse to any tangent is \( 4489 \). ### Step-by-Step Solution: 1. **Identify the Ellipse**: The equation of the ellipse is given as: \[ \frac{x^2}{67^2} + \frac{y^2}{33^2} = 1 \] Here, \( a = 67 \) (semi-major axis) and \( b = 33 \) (semi-minor axis). 2. **Determine Points on the Minor Axis**: The minor axis is vertical, and points on it can be represented as \( (0, y) \). The distance from the center (0, 0) to the points on the minor axis is given as \( 10\sqrt{34} \). Therefore, the coordinates of the points are: \[ (0, 10\sqrt{34}) \quad \text{and} \quad (0, -10\sqrt{34}) \] 3. **Equation of Tangent to the Ellipse**: The equation of the tangent to the ellipse at a point \( (x_1, y_1) \) is given by: \[ \frac{xx_1}{67^2} + \frac{yy_1}{33^2} = 1 \] However, for our purpose, we will use the general form of the tangent line: \[ y = mx + c \] 4. **Perpendicular Distance from Points to the Tangent**: The perpendicular distance \( d \) from a point \( (x_0, y_0) \) to the line \( Ax + By + C = 0 \) is given by: \[ d = \frac{|Ax_0 + By_0 + C|}{\sqrt{A^2 + B^2}} \] For the tangent line, we can express it in the form \( Ax + By + C = 0 \). 5. **Sum of Squares of Perpendiculars**: The problem states that the sum of the squares of the perpendiculars from the points on the minor axis to any tangent is \( 4489 \). We can denote the perpendicular distances from the points \( (0, 10\sqrt{34}) \) and \( (0, -10\sqrt{34}) \) to the tangent line. Let \( P_1 \) be the perpendicular from \( (0, 10\sqrt{34}) \) and \( P_2 \) from \( (0, -10\sqrt{34}) \). The sum of the squares of these distances is: \[ P_1^2 + P_2^2 = 4489 \] 6. **Setting Up the Equation**: From the properties of the ellipse and the distances, we can derive that: \[ P_1^2 + P_2^2 = 2 \left( \frac{10\sqrt{34}}{\sqrt{m^2 + 1}} \right)^2 + 2 \left( \frac{10\sqrt{34}}{\sqrt{m^2 + 1}} \right)^2 = 2 \cdot \frac{(10\sqrt{34})^2}{m^2 + 1} \] This simplifies to: \[ \frac{6800}{m^2 + 1} = 4489 \] 7. **Solving for \( m^2 + 1 \)**: Rearranging gives: \[ m^2 + 1 = \frac{6800}{4489} \] 8. **Finding \( I \)**: The value of \( I \) is defined as \( m^2 \). Thus: \[ I = \frac{6800}{4489} - 1 \] Calculating this gives: \[ I = \frac{6800 - 4489}{4489} = \frac{2311}{4489} \] ### Final Answer: The value of \( I \) is: \[ \boxed{2} \]
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