For which values of a and b E R is the following piecewise function continuous on IR? sin(a )+ ax<0 2³ - ² + 1 x=0 f(x) = sin a +b x>0 x Select one alternative: O a = 1,b=0 O There are no such values of a and b Oa=2,b=0 0a=b=2

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