Q 1725612561.     If `f (x) = [ tt ( (mx+1 , text(if) x le pi/2) , ( sinx +n , text(if) x > pi/2) )` is continuous at `x = pi/2`, then

NCERT Exemplar 05/89/mcq
A

`m=1 , n=0`

B

`m = (n pi)/2 +1`

C

`n = (m pi)/2`

D

`m =n =pi/2`

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