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If f(x)={{:((sin(a+1)x+2sinx)/x", "xlt0)...

If `f(x)={{:((sin(a+1)x+2sinx)/x", "xlt0),(2" ,"x=0),((sqrt(1+bx)-1)/x" ,"xgt0):}`
is continuous at x = 0, then find the values of 'a' and 'b'.

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