Question

if the lines 3x+2ky+2=0 , 2x+5y+1=0 are parallel then the value of k is​

Answer 1

3x/2x = a1/a2 = 3/2

2ky/5y = b1/b2 = 2k/5

2/1 = C1/C2 = 2/1

for parallel lines a1/a2 = b1/b2 ≠ C1/c2

3/2 = 2k/5

15=4k

k=15/4

b1/b2 ≠ c1c2

2k/5 ≠ 2/1

2k≠ 10

k ≠ 5

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