Question

Locus of the intersection of the two straight lines passing through (1, 0) and (–1, 0) respectively and including an angle of 45° can be a circle with 

(A) Centre (1, 0) and radius √2. 

(B) Centre (1, 0) and radius √2. 

(C) Centre (0, 1) and radius √2. 

(D) Centre (0, –1) and radius √2. 

Answer 1

Correct option (C, D)

Explanation:

 Let h, k be the point of intersection 

∴ The angle between lines is either 45º or 135º