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Questions  

If the angle between the lines 3 y  x + 4 = 0 and x + y  6 = 0  is q, then tan q is equal to.

a
3+1
b
3-1
c
2+3
d
3+2

detailed solution

Correct option is C

Slopes of the given lines are 13 and -1, so tanθ=13+11-13=3+13-1=2+3

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