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A vector \(\vec A\) is expressed as \(\vec A\) = Ax\(\hat i\) + Ay\(\hat j\), where Ax and Ay are its components along x-axis and y-axis respectively. If vector \(\vec A\) makes an angle θ with x-axis, then θ is given by which expression?

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Here,       \(A_x=A\,cos\,\theta\)

 \(A_y=A\,sin\,\theta\)

\(tan\,\theta=\frac{A_x}{A_y}\)

or   θ = \(tan^{-1}\frac{A_y}{A_x}\)

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