# 9th Class Mathematics Trigonometrical Ratios and Identities Values of Ratios

Values of Ratios

Category : 9th Class

### Values of Ratios

1.      $\text{sin}\theta$: It always lies between -1 and 1

i.e. $\text{-1}\le \text{sin}\theta \le 1$

2.      $\cos \theta$: It always lies between -1 and 1

i.e. $\text{-1}\le \cos \theta \le 1$

3.      $\tan \theta$: It can take any value in between $-\infty$and$\infty$.

i.e. $-\infty \le \tan \theta \le \infty$

4.      $\cot \theta$: It takes the any value in between $-\infty$and$\infty$.

i.e. $-\infty \le \cot \theta \le \infty$

5.      $\sec \theta$: It can take any value except the values lies between -1 and 1.

i.e. $\sec \theta \le -1$ and $\sec \theta \ge 1$

6.      $co\sec \theta$: It can take any value except the values lies between -1 and 1.

i.e. $co\sec \theta \le -1$ and $co\sec \theta \ge 1$

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