Find the distance between parallel lines(i) `15 x + 8y -34 = 0`and `15 x + 8y + 31 = 0 `(ii) `l(x + y) + p = 0 and l(x + y) - r =0`.

Explanation

To find the distance between the given parallel lines, we will use the formula for the distance \( d \) between two parallel lines given by:

\[ d = \frac{|c_1 - c_2|}{\sqrt{a^2 + b^2}} \]

where the equations of the lines are in the form \( ax + by + c_1 = 0 \) and \( ax + by + c_2 = 0 \).

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