If s- 1/x=1/2 then the value of 4x²+4/x² is :

(a) 7
(b) 9
(c) -7
(d) -8

Anurag Mishra Professor Asked on 3rd February 2016 in Maths.
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    Answer: (b) 9

    Anurag Mishra Professor Answered on 6th February 2016.
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