Question:
A ray of light coming from (3, 1) incident on 2x + y = 6 and deflected ray passing through (7, 2). If equation of incident ray is ax + by + 1 = 0, then a2 + b2 + 3ab =
A ray of light coming from (3, 1) incident on 2x + y = 6 and deflected ray passing through (7, 2). If equation of incident ray is ax + by + 1 = 0, then a2 + b2 + 3ab =
Updated On: Mar 25, 2026
- \(\frac{11}{25}\)
- \(-\frac{11}{25}\)
- \(-\frac{3}{5}\)
- \(\frac{3}{5}\)
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The Correct Option is B
Solution and Explanation
The Correct answer is option is (B) : \(-\frac{11}{25}\)
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