Which of the following statements are correct? 1 . if sin θ = sin α

1.	Which of the following statements are correct? 1 . if sin θ = sin α ⇒ θ = nπ + (−1)nα where α ∈ [ - π2 , π2] n ∈ I 2 . if cos θ = cos α ⇒ 2nπ±α where α ∈ [0,π] n ∈ I 3 . if tan θ = tan α ⇒ θ = nπ + α where α ∈ (- π2 , π2 ) n ∈ I
Answer» Which of the following statements are correct? 1 . if sin θ = sin α ⇒ θ = nπ + $(- 1)^{n}$ α where α ∈ [ - $\frac{π}{2}$ , $\frac{π}{2}$ ] n ∈ I 2 . if cos θ = cos α ⇒ 2nπ±α where α ∈ [0,π] n ∈ I 3 . if tan θ = tan α ⇒ θ = nπ + α where α ∈ (- $\frac{π}{2}$ , $\frac{π}{2}$ ) n ∈ I

Which of the following statements are correct? 1 . if sin θ = sin α ⇒ θ = nπ + (−1)nα where α ∈ [ - π2 , π2] n ∈ I 2 . if cos θ = cos α ⇒ 2nπ±α where α ∈ [0,π] n ∈ I 3 . if tan θ = tan α ⇒ θ = nπ + α where α ∈ (- π2 , π2 ) n ∈ I

Answer»

Which of the following statements are correct?

1 . if sin θ = sin α ⇒ θ = nπ + $(- 1)^{n}$ α where α ∈ [ - $\frac{π}{2}$ , $\frac{π}{2}$ ] n ∈ I

2 . if cos θ = cos α ⇒ 2nπ±α where α ∈ [0,π] n ∈ I

3 . if tan θ = tan α ⇒ θ = nπ + α where α ∈ (- $\frac{π}{2}$ , $\frac{π}{2}$ ) n ∈ I