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If L1 = 2.02 m pm 0.01 m , L2 = 1.02 m p...

If `L_1 = 2.02 m pm 0.01 m , L_2 = 1.02 m pm 0.01 m , ` determine `L_1 + 2L_2`

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`L_1 + 2L_2 = L_1 + L_2 + L_2`
`(2.02 m pm 0.1m) + (1.02 m pm 0.01m) + (1.02 m pm 0.01m)`
`= 4.06 m pm 0.03 m`.
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AAKASH SERIES-UNITS AND MEASUREMENT-PRACTICE EXERCISE
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