General Trigonometry Formula

1 . \sin θ = \frac{1}{cosec θ}

2 . \cos θ = \frac{1}{\sec θ}

3 . \tan θ = \frac{1}{\cot θ} = \frac{\sin θ}{\cos θ}

4 . \sec θ = \frac{1}{\cos θ}

5 . cosec θ = \frac{1}{\sin θ}

6 . \cot θ = \frac{1}{\tan θ} = \frac{\cos θ}{\sin θ}

7 . \sin^{2} θ + \cos^{2} θ = 1

8 . \sec^{2} θ - \tan^{2} θ = 1

9 . {cosec}^{2} θ - \cot^{2} θ = 1

10 . \tan θ \times \cot θ = 1