(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

2(1/t)/(1/t)^2+t * -1/t^2 + 2sqrtt/ (1/t)^2+t * 1/2sqrtt

2. Relevant equations

3. The attempt at a solution

my solution = -4t^3 + 3t^2+ 2t/t+ t^4

but incorrect

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# Some algebra simplification

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