Question

iv) Find 2 so that X+5xy+4y+3x+2y+2=0
may represents a pair of straight lines. Find
also the angle between them for this value
of a​

Answer 1

Answer:

If the equation x2 + 5xy + 4y2 + 3x + 2y + c = 0 represents a pair of lines, then find the value of c and also the angle between the linesRead more on Sarthaks.com - https://www.sarthaks.com/509682/if-the-equation-x-2-5xy-4y-2-3x-2y-c-0-represents-a-pair-of-lines-then-find-the-value-of-c-and-also