Find the slope of the line whose inclination is 120
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Step-by-step explanation:
Given Find the slope of the line whose inclination is 120
We need to find slope of line where inclination θ = 120 degree
Given that θ = 120 degree
Slope = tan θ
= tan (120) degree
= tan (90 + 30)
= - cot 30 degree
= - √ 3
The slope of the line whose inclination is 120 is - √3
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