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If represents a pair of parallel lines then
detailed solution
Correct option is B
By observing the options, consider the distance between the parallel lines The distance between the parallel lines ax2+2hxy+by2+2gx+2fy+c=0 is 2g2−acaa+bor 2f2−bcba+bEquate these two distances 2g2−aca(a+b)=2f2−bcb(a+b)g2−aca(a+b)=f2−bcb(a+b) • squaring on both sidesg2−aca=f2−bcb • Cancel out the common factorsba=f2−bcg2−acTherefore, ba=f2−bcg2−acTalk to our academic expert!
Similar Questions
If the lines represented by the equation are rotated about the point through an angle of one in clockwise direction and the other in anticlockwise direction, so that they become perpendicular, then the equation of the pair of lines in the new position is
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