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What is the range of the function (2+\sin x)?

Answer and explanation

Correct answer: \([1,3]\)

Since \(\sin x\) always lies between \(-1\) and \(1\), the minimum value of \(2+\sin x\) is \(2-1=1\) and its maximum value is \(2+1=3\). Hence, its range is \([1,3]\). The interval \([-1,1]\) is the range of \(\sin x\) alone, not of \(2+\sin x\). Exam tip: when a constant is added to a function, add that constant to both endpoints of its range.

Related tags

Range Of FunctionSine FunctionTrigonometric FunctionsVertical ShiftClass 11 MathematicsTrigonometric Functions And Their PropertiesMathematicsClass 12 Mcq

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