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If f(x) is continuous at x=3, then f(x)=...

If f(x) is continuous at x=3, then `f(x)=ax+1," for x "le3`
`=bx+3," for x "gt" 3 then "`

A

`a+b=2/3`

B

`a+b=(-2)/(3)`

C

`a-b=2/3`

D

`a-b=(-2)/(3)`

Text Solution

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The correct Answer is:
C
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