3 what is the principal value of :cos-1(cos3π4)+sin-1(sin3π4) - Maths - Relations and Functions

Question

3   w h a t   i s   t h e   p r i n c i p a l
  v a l u e   o f   : cos - 1 ( cos 3 π 4 ) +
sin - 1 ( sin 3 π 4 )

Akshat Anuj · Accepted Answer

Dear student,
<img alt="" src=
"https://s3mn%20mnimgs%20com/img/shared/content_ck_images/ck_5d1732175de75%20png">
where arccos = cos-1 and arcsin = sin-1

Regards

3 . w h a t i s t h e p r i n c i p a l v a l u e o f : cos - 1 ( cos 3 π 4 ) + sin - 1 ( sin 3 π 4 ) .

$3 . w h a t i s t h e p r i n c i p a l v a l u e o f : \cos^{- 1} (\cos \frac{3 π}{4}) + \sin^{- 1} (\sin \frac{3 π}{4}) .$