Answer
Please see the work below.
Work Step by Step
We know that trans-decalin is more stable as compared to cis-decalin as three 1,3-diaxial interactions are present in cis isomer.
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.