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Express the following to four significan...

Express the following to four significant figure:
i. `6.58768 xx 10^(5)` ii. 8.35783`
iii. 98.2350 iv. 0.003586
v. 90000

Text Solution

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i. `6.587 xx 10^(5)` and after rounding off `6.588 xx 10^(5)`.
ii. 8.357 and after rounding off 98.24.
iii. 98.23 and after rounding of 98.24.
The righmost digit to be removed is 5, and the preceding number is 3 (odd number), so it is increased by one.
iv. 0.003586 (zeros after decimal point and to the left of a number are not significant).
v. `9.000 xx 10^(4)`
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