If a/b+b/a=4,then the value of a2/b2+b2/a2 is:
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squre both sides
(a/b)^2 +(b/a)^2=4^2
a^2/b^2 + b^2/a^2 =16
is your answer
(a/b)^2 +(b/a)^2=4^2
a^2/b^2 + b^2/a^2 =16
is your answer
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