Question 1182144
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A different approach....<br>
The "+3" at the end of the function tells us the midline of the graph of the function is y=3.<br>
The factor "-3" on the cosine function tells us the function value varies 3 units either side of the midline; that makes the maximum and minimum function values 3+3=6 and 3-3=0<br>
ANSWER: maximum value: 6<br>