Question

What is the domain and range of `abs(cos x)`?

Answer 1

Domain of `f =RR.`

Range of `f` = `[0,1].`

Explanation:

Let `f(x)=|cosx|`

Since `x` can take any value, Domain of `f =RR.`

Now we know that, `AAx in RR, -1<=cosx<=+1.`

Therefore,`0<=|cosx|<=1.` Hence, Range of `f` =[0,1]#