Evaluate the value of $\tan 270 °$ .

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Solution

Compute the required value:
We have to find the value of $\tan 270 °$
We can express $\tan 270 °$ as
$\begin{array}{rcl} \tan 270 ° & = & \tan (3 \times 90 ° + 0 °) \\ = & - c o t 0 ° \\ = & N o t d e f i n e d \end{array}$
Hence,the value of $\tan 270 °$ is not defined.

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