If , then find the value of then Multiplying by both sides – or x 3 +
| If 
, then find the value of 
, then find the value of
A. 5
B. 6
C. 10
D. 1
Right Answer is: A
SOLUTION
then 
Multiplying by 
both sides –
or 
x3 + 1 = 0 or x3 =-1
Required,
= 5 {Since, x3 + 1 = 0}.
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