Question

1. If the second degree equation X ax+2hxy+by +2gx+2fy+c=0 in the two variables1. If the second degree equation X ax+2hxy+by +2gx+2fy+c=0 in the two variables x and y represents a pair of straight lines, then

(i) abc+2fgh-af-bg-ch-0 and (ii) h2 ab, g'z ac and f2 be.​

Answer 1

In mathematics, the Pythagorean theorem, also known as Pythagoras's theorem, is a fundamental relation in Euclidean geometry among the three sides of a right triangle. It states that the area of the square whose side is the hypotenuse (the side opposite the right angle) is equal to the sum of the areas of the squares on the other two sides.↑ω↑