Question: Consider the function below.f()=2 cos()+ cos2(),02(a) Find the interval of increase. (Enter your answer using interval notation.)(0,2) Find the interval of decrease. (Enter your answer
Consider the function below.f()=2 cos()+ cos2(),02(a) Find the interval of increase. (Enter your answer using interval notation.)(0,2) Find the interval of decrease. (Enter your answer using interval notation.)(b) Find the local minimum value(s).(Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.)Find the local maximum value(s).(Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.)
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