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range of cos ?

i mean what's the max and min of cos x?

huh?

and yoru range is between 0 and pi (so 0<=y<=pi)

and for hte domain it is - sqrt(2) <=x<=sqrt(2)

@MarcLeclair may you please show me how to do it?

yes give me one second :)

did your teacher giove you the domain of the arccosine function?

There is a set one but im just wondering if you have it

nope

hope it helped if you need help wit hthe inequalities I will :)

0<= arccosin (x^2+1)<=pi*