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UP TGT Mathematics Co-ordinate Geometry Test Series - Part 1

The length of the major axis of the ellipse 4x² + 9y² - 8x + 36y + 4 = 0 is:

Type: MCQ • Marks: 1
The length of the major axis of the ellipse 4x² + 9y² - 8x + 36y + 4 = 0 is:
Options
A. 4 units
B. 3 units
C. 6 units
D. 9 units
Explanation
Complete squares: (x-1)²/9 + (y+2)²/4 = 1. a² = 9 => a = 3. Major axis = 2a = 6 units.
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