Introduction to...

The expression $$ \displaystyle \frac{\tan A}{1-\cot A}+\frac{\cot A}{1-\tan A}$$ can be written as:

The value of tan $$1^o$$ tan $$2^o$$ tan $$3^o$$.... tan $$89^o$$ is.

If $$\tan \theta= \cot \theta$$, then the value of $$\sec \theta$$ is :

The value of $$\displaystyle\,\frac{2}{tan\,30^{\circ}}$$ is ________

If $$\theta =45^{\circ},$$ then the value of $$cosec^{2}\theta$$ is

The value of $$\displaystyle \tan { { 45 }^{ o } } \times \cot{ { 45 }^{ o } }$$ is :

$$\displaystyle \sin { { 90 }^{ o } } $$ is :

The value of $$\displaystyle \tan 45^{\circ} + \tan 60^{\circ}.$$

If $$\displaystyle \theta =45$$ then $$\displaystyle \frac { 2\tan { \theta  }  }{ 1+{ \tan }^{ 2 }\theta  } $$ is :

Find $$\tan\theta,$$ if $$\theta=45^o.$$