The value of tan function when angle of right triangle equals to $45^°$ is called tan of angle $45$ degrees. According to sexagesimal system, it is written as $\tan{(45^°)}$ in mathematics.

$\tan{(45^°)} \,=\, 1$

The value of tan of angle $45$ degrees is equal to $1$ exactly and also an integer.

$\tan{(45^°)}$ is alternatively written as $\tan{\Big(\dfrac{\pi}{4}\Big)}$ in circular system and also written as $\tan{(50^g)}$ in centesimal system.

$(1) \,\,\,$ $\tan{\Big(\dfrac{\pi}{4}\Big)} \,=\, 1$

$(2) \,\,\,$ $\tan{(50^g)} \,=\, 1$

You learnt the exact value of tan of angle $45$ degrees and now, you can learn how to derive $\tan{\Big(\dfrac{\pi}{4}\Big)}$ in trigonometry mathematics.

Math Doubts is a best place to learn mathematics and from basics to advanced scientific level for students, teachers and researchers.
Know more

Learn how to solve easy to difficult mathematics problems of all topics in various methods with step by step process and also maths questions for practising.