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. $\frac{11}{25}$
• B. $-\frac{11}{25}$
• C. $-\frac{3}{5}$
• D. $\frac{3}{5}$

Answer 1

Answer: (B)

$-\frac{11}{25}$

Answer 2

The Correct answer is option is (B) : $-\frac{11}{25}$