Question

show that the following equation represents a pair of straight lines . find the point of intersection and the acute angle between them 3x square+7xy+2y square+5x+5y+2=0​

Answer 1

Answer:

54+33/1*6gda d*6/5 d SC me Cvc*5=598",68 6zbsggs

Answer 2

for a general eq ax

2

+2hxy+by

2

+2gx+2fy+c=0 will represents pair of straight line if:

a,b,h

is not equal to

=0 and h

2

−ab>or=0

for 3x

2

+7xy+2y

2

+5x+5y+2=0 a=3,h=7/2,b=2

h

2

−ab=49/4−6=25/4>0 (represents straight line)