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CBSE Class 11-science Answered

add 3 X 10-6 to 4.2 X 10-5 with due regard to significant figures
Asked by Snehal Pillai | 30 Jul, 2012, 08:18: PM
answered-by-expert Expert Answer
3 x 10-6 = 0.000003
4.2 x 10-5 = 0.000042
 
Both of these have basically the same number of significant figures, thus:
 on adding: 0.000045 = 4.5 x 10-5
Answered by | 02 Aug, 2012, 06:12: PM
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