Question

5. If the straight lines ax + by + c = 0 and x cosa + y sina = c enclose an angle #14 between them and meet
the straight line x sina - y cos a = 0 in the same point, then
(a) a? + b2 = c2
(b) a? +62 = 2
(c) a² + b² = 20²
(d) a² + b² = 4​

Answer 1

b2

please mark as brainlist

please mark as brainlist