solve this fast I need help
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Firstly 10^-10×274×1293=354282×10^-10=3.54282×10^-10×10^5=3.54282×10^-5=3.54×10^-5
1.29×10^-4-0.354×10^-4+0.42×10^-4
10^-4 (1.29-0.35+0.42)
whatsoever be the calculation ans should be D
1.29×10^-4-0.354×10^-4+0.42×10^-4
10^-4 (1.29-0.35+0.42)
whatsoever be the calculation ans should be D
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