Exams › JEE Advanced › Maths
What is the greatest slope of the lines represented by the combined equation x² - 7xy + 12y² = 0?
- 3
- 4
- 1/3
- 1/4
Correct answer: 1/3
Solution
Factoring gives lines y = x/3 (slope 1/3) and y = x/4 (slope 1/4); the greatest slope is 1/3.
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