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If the function f(x)={{:((1+cospix)/(p...

If the function `f(x)={{:((1+cospix)/(pi^(2)(x+1)^(2)),",",xlt-1),(ax+b,",",-1lexle1"is continuous" AA x "in R, then the value of 3a-bis-"),((x-1)/(lnsqrt(x)),",",xgt1):}`

A

3

B

1

C

`-1`

D

`-3`

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The correct Answer is:
B
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