Substract 2.5x104 from 3.9x105 with due regard to significant figure.
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Answer:
We have
=>3.9×10⁵−2.5×10⁴
=>3.9×10⁵−0.25×10⁵
=>3.65×10⁵
But our answer should be rounded off upto two significant digits.
So, the ans is 3.6×10⁵
Explanation:
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