Question

Find the value of k for which the system of equations x+2y=5,3x+ky=5 is consistent

Answer 1

Answer:

Kx + 3y=1

12x+ ky= 2

a1/a2 = k/12

b1/b2 = 3/k

c1/c2 = 1/2

these equations has no solution. So

k 3 1

_ = _ not = _

12 k 2

2k = 12×3

2k=36

k=36÷2

k=18