Question

Find the maximum and minimum values of f(x)= 4-|cos3x|

Answer 1

Answer:

f(x)=∣x−2∣−1

Minimum value of ∣x−2∣=0

Minimum value of f(x)=minimum value of ∣x−2∣−1

=0−1=−1

Minimum value of f(x)=−1→(x=−2)

f(x) has no maximum value.