Question

if y +1/y=3,find y^2 +1/y^2​

Answer 1

Answer:

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Step-by-step explanation:

ANSWER ::

y^2 +1/y^2

= ( y+1/y)^2 - 2×y×1/y

= 3^2 - 2

= 7

Answer 2

Step-by-step explanation:

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