Question

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Answer 1

Step-by-step explanation:

We have ,

AB / AC = 1/2

→ (3 x -4)/(2x +12) = 1/2

→ 3x - 4 = x +6

→ 3x - x = 10

→ 2x = 10/2= 5

Now ,

AC = 2x + 12 = 2(5) + 12= 22

BC = 7(x ) -2 = 7(5) - 2= 33

Now , we have

AC / BC = 22/33 = 2/3

Hence , proved

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