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1.
- A. 9
- B. 9
- C. 9
- D. 9
Answer: Option C
Explanation:
Given that,
x+2/x=3
So, x^3 + 8/x^3=?
=(x)^3 + (2/x)^3
=(x+2/x)^3 -3.x.2/x(x+2/x)
=(3)^3 - 6(3)= 27 - 18
= 9
Answer: 9
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1.
Answer: Option C
Explanation:
Given that,
x+2/x=3
So, x^3 + 8/x^3=?
=(x)^3 + (2/x)^3
=(x+2/x)^3 -3.x.2/x(x+2/x)
=(3)^3 - 6(3)= 27 - 18
= 9
Answer: 9
Post your comments here: