Question

What are the full forms of $\sin ,\cos ,\sec ,\mathrm{cosec},\tan$and $\cot$?

Answer 1

Write full form of trigonometric ratios.

There are six trigonometric ratios which are valid for right-angle triangles.

The full forms are as shown below,

$$\begin{gathered} \sin \Rightarrow \mathrm{sine} \\ \cos \Rightarrow \mathrm{cosine} \\ \tan \Rightarrow \mathrm{tangent} \\ \mathrm{cosec}\Rightarrow \mathrm{cosecant} \\ \sec \Rightarrow \mathrm{secant} \\ \cot \Rightarrow \mathrm{cotangent} \end{gathered}$$

Hence, the full forms of $\sin ,\cos ,\sec ,\mathrm{cosec},\tan$and $\cot$ are $\mathrm{sine},\mathrm{cosine},\mathrm{secant},\mathrm{cosecant},\mathrm{tangent}$ and $\mathrm{cotangent}$, respectively.