please answer these questions. given above in picture
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q.6) ans is 2
The condition of coincidence lines is a1/a2 =b1/b2=c1/c2.
so on placing the values in this condition we get a1/a2=c1/c2=1/2
So,for b1/b2=1/2
k should be equal to 2 to satisfy the condition of coincident lines
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