Question
2.666 …+ 2.77… in fraction form
is:Solution
ATQ,
Convert 2.666... to Fraction: Let x = 2.666... (repeating 6) Multiply by 10: 10x = 26.666... Subtract: 10x−x = 24 x = 24/9= 3/8 Convert 2.777... to Fraction: y = 2.777... (repeating 7) Multiply by 10: 10y = 27.777... Subtract: 10y − y=25 y = 25/9 Add the Fractions: Convert to a common denominator (9):
If x – 1/x = 9, then x3 – 1/x3 is:
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