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Find all possible values of a and b so that f(x) is continuous for all `x epsilon R ` if `f(x) = {(|ax+3| , if x <= -1 ), (|3x+a|, if -1ltxle0 ), ((bsin2x)/x - 2b, if 0ltxltpi) , (cos^2x -3 , if x>=pi):}`

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