If a^2 b^2 +1/a^2+1/b^2= 4 ,,Then the value of ?a^2+b^2 is ???

Dear student
Your question seems to be incomplete as ? is unclear,kindly recheck and post again so that we may provide you meaningful help,looking forward to hear from you again.
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Bro your question is not understandable pls post pic of your question
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