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Attempt following question by selecting a choice to answer.
c
Find the angle of inclination of a line whose slope is

3
.
c c
A.
c
π
4
B.
c
5
π
4
C.
c
2
π
3
D.
c
π
3
c
C
View Solution Steps
Step 1: Let θ be the angle of inclination of the line with slope (
3
)
Step 2: tan θ = 
3
[Use the definition of slope.]
Step 3: tan θ = 
3
= tan(
2
π
3
)[0 ≤ θ < π]
Step 4: θ =
2
π
3
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