If a leq 3 cos (theta+pi/3)+5cos theta...

If `a leq 3 cos (theta+pi/3)+5cos theta+3 leq b`, find `a and b`, where a is the minimum value & b is the If a maximum value.

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a) `y_("max")=11, y_("min")=1`, b) `y_("max")=13/3, y_("min")=-1`, c) `49`, d) `a=-4`and `b=10`

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