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Let y=l-z where l=2.0 pm 0.1, z=1.0 pm 0...

Let y=l-z where `l=2.0 pm 0.1, z=1.0 pm 0.1` then the vaule of y is given by

A

`1.0`

B

`1.0 pm 0.2`

C

`3.0`

D

`3.0 pm 0.2`

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