Question
Write 3.421E-20 in decimal notation.
Answer
3.421E-20 = 0.00000000000000000003421
Explanation
Step 1: The exponent for 10 is -20. Since the exponent is negative, we must move the decimal point of a number 3.421 20 places to the left.
3.421 → .-------------------3.421
Step 2: Now we just need to replace empty spaces (dashes) with zeros and to delete old decimal point (the black one) to get:
.00000000000000000003421
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