# What is the value of #cos^-1(cos12^o)-sin^-1(sin12^o)# ?

##### 1 Answer

Apr 16, 2016

zero

#### Explanation:

0 or 2 pi and multiples since the inverse cosine is the angle. The angle whose cosine is cosine of 12 degrees is the angle itself, that is 12 degrees. Now it could also be 12 degrees plus