If a³+b³=9 and a+b=3, then the value of 1/a+1/b is : – McqOptions

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1.	If a³+b³=9 and a+b=3, then the value of 1/a+1/b is :
A.	1/2
B.	3/2
C.	5/2
D.	-1
Answer» C. 5/2

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