Transform the equation ` x/a + y/b = 1` into normal form when `a>0` and `b>0`. If the perpendicular distance from origin to the line is `p` then deduce that ` 1 / p^2 = 1 / a^2 + 1 / b^2`

Options

A. `x^(2)+y^(2)=(c^(2))/(2)`
B. `x^(2)+y^(2)=c^(2)`
C. `x^(2)+y^(2)=2c`
D. None of these

Answer

B