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· 1 Months ago

Q 116828 (Question: 116828.0 )

kindly explain how did you got this answer ...

Question:

If the average of two numbers x and \(\cfrac{1}{x}\) (where x ≠ 0) is A, then what will be the average of x3 and \(\cfrac{1}{x^3}\)?

Options:
A) 4A3 – A
B) 4A3 – 2A
C) 4A3 – 3A
D) 4A3 – 4A
E) None of these
Solution:
Ans: (c)

Given : 


\(\therefore\) Average = 4A3 – 3A

Knowledge Expert

· commented

· 1 Months ago

Apply formula, (a+b)^3 =a^3+b^3+3a^2b+3ab^2
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