1.

If [x] denotes the greatest integer not exceeding x andif the function f definedbyf (x) ={:{ ((a +2 cos x)/(x^(2)),x lt 0), ( btan "" pi/(x +4), x ge 0):}is continuous at x = 0,then the ordered pair(a,b) is equal to

Answer»

(-2,1)
(-2,-1)
`(-1,SQRT3)`
`(-2,-sqrt3)`

ANSWER :B


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