1.

Consider the following statements: The distance between:1) The distance between the lines y = mx + c1 and y = mx + c2 is \(\frac{{\left| {{c_1} - {c_2}} \right|}}{{\sqrt {1{\rm{\;}} - {\rm{\;}}{m^2}} }}\)2) The distance between the lines ax + by + c1 = 0 and ax + by + c2 = 0 is \(\frac{{\left| {{c_1} - {c_2}} \right|}}{{\sqrt {{a^2} + {b^2}} }}\)3) The distance between the line x = c1 and x = c2 is |c1 – c2|Which of the above statements are correct?

A. 1 and 2 only
B. 2 and 3 only
C. 1 and 3 only
D. 1, 2 and 3
Answer» C. 1 and 3 only


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