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October 28th, 2018, 08:58 PM   #1
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jacobian

hi guys,
what is my next step please?

I stucked.
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October 28th, 2018, 09:08 PM   #2
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You've got a sign error in $J_{2,2}$
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October 28th, 2018, 10:12 PM   #3
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Thanks. Let me correct it.
After that how should I continue?
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October 28th, 2018, 11:50 PM   #4
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there's not a ton you can do to it.

You can apply a trig or hyptrig identity to simplify it a bit but that's about it.
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October 29th, 2018, 01:43 AM   #5
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After correcting the sign, the result can be simplified a little by use of standard identities.
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