plsssssssssssssssss answer it
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answer is 223 just square both sides and subtract 2
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hey your ans is here
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given
x+1/x=15
x2+1/x2=?
now apply the identity
(a+b)^2=a2+b2+2ab
or
(x+1/x)^2=x2+1/x2+2
(15)^2=x2+1/x2+2
225=x2+1/x2+2
223=x2+1/x2
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hope it helps!
----
given
x+1/x=15
x2+1/x2=?
now apply the identity
(a+b)^2=a2+b2+2ab
or
(x+1/x)^2=x2+1/x2+2
(15)^2=x2+1/x2+2
225=x2+1/x2+2
223=x2+1/x2
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hope it helps!
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