If r sinθ = √3 r cosθ = 1, rhen values

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r sinθ = √3
r cosθ = 1
On squaring and adding,
r²sin²θ + r²cos²θ = 3 + 1
⇒ r² (sin²θ + cos²θ) = 4

Again,	r sinθ	= √3
	r cosθ

⇒ tanθ = √3 = tan 60°
⇒ θ = 60°