find the range of the function F(x)=1/2+sin3x
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FOR RANGE :
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now multiplying by -1 we get,
=> 1 ≥ - sin3x ≥ -1
adding 2 we get,
=> 2+1 ≥ 2 - sin3x ≥ 2-1
=> 3 ≥ 2-sin3x ≥ 1
now taking inverse we get,
so Range € [ ⅓ , 1 ]
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