Question

.
Angle (in rad) made by the vector root 3i + j with the x-axis is
1) π/6 2) π/4 3) π/3
4) π/4
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Answer 1

Explanation:

A = √3i + j

Here x = √3 and y = 1

Tanθ = y / x

Tanθ = 1 / √3

Tanθ = Tan30

θ = 30°

Angle made by vector with x-axis is 30°