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Akshita

· started a discussion

· 1 Months ago

sol (Question: 189786.0 )

we have been asked the value of x^3-y^3.

Question:

If \(\cfrac{x}{y} + \cfrac{y}{x}\)  = -1, x, y \(\neq\) 0, then the value of 2(x3 –y3)  is –

Options:
A) 0
B) 1
C) -1 
D) 2
Solution:
Ans: (a)


Giridhari das

· commented

· 1 Months ago

Isn't it obvious that x3-y3 will be zero.
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