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Question
Solution
Slope of line PQ = `("y"_2 - "y" _1)/("x"_2 - "x"_1)`\
= `(5 - 1)/(6 - 8)`
= `4/-2`
Slope = -2
Also,Slope of line PQ = tan θ
tan θ = -2
θ = tan-1 (-2)
Inclination = tan -1(-2)
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