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Question

Find the joint equation of the following pair of lines :
2x+y=0 and 3x5y=0

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Solution

soln :
Eqn of first line 2x+y=0
Eqn of second line 3x5y=0
Thus the joint equations of a line is gn by
(2x+y)(3x5y)=0
2x(3x5y)+y(3x5y)=0
6x210xy+3xy5y2=0
6x27xy5y2=0
This is the required joint eqn

1211590_1166813_ans_b3792fdbd36b4afa9ad51490ddbe4e3d.jpg

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