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If $x = 10.0 \pm 0.1$ and $y = 10.0 \pm 0.1$ , then $2 x - 2 y$ is equal to

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Correct option is C

Let say z = 2 x-2 yz=2×10.0-2×10.0=0.0Δz=2Δx+2Δy=2(0.1+0.1)=0.4(z±Δz)=(0.0±0.4)

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If x=10.0±0.1 and y=10.0±0.1, then 2 x-2 y is equal to

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If $x = 10.0 \pm 0.1$ and $y = 10.0 \pm 0.1$ , then $2 x - 2 y$ is equal to