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sawan rathi from ,

Subject :IMO Class : Class 8

If = 4 then =

A
B
C
D

Ans 1:

Asmi Raniga from Indian School Ghubra, Muscat

Class : Class 8

square all terms= x2 + 1/x2 +2=16 x2+1/x2=14 x-1/x=? square all = x2+1/x2 - 2 = ? x2-1/x2=14 thus- 14 -2 = 12 root of 12 is 2 root 3.

Aryaman Agrawal from St. Francis School, Ghaziabad

Class : Class 8

(A)