Question

How do you find the exact value of tan π/4?

Answer 1

`tan (pi/4)`=1

Explanation:

`pi`=180˚

`therefore` `pi/4`=45˚

hence tan 45˚=1

The reason `pi` equals 180˚ is that the circumference of a circle is 360˚

C=2`pi`r=360˚ which is one full rotation of r
now 180˚ is `1/2` a rotation of r which equals
`1/2 * 2pi`= `pi`

`therefore` `pi=180˚`