Question

3. Do the equations - 2x - 3y = 1 and 4x + by - 2 represent a pair of coincident lines? fustaty your
answer
1. Does there exist a quadratic equation whose coefficients are rational but both of its roots are​

Answer 1

Answer:

(3). 2x- 3x = 1, 4x+ by-2

2x-3x= 1...........(1)

4x+by-2...,.......(2)

Adding equation (1)& (2)

2x-3x=1

4x+by-2

_________

6x +3xy=-3

9xy+-3

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