with a
with b
in 
------------------This is an equivalence
------------------------ This is another equivalence
the subject of formula
for 
---------------------- This is another equivalenceComplete the identity.
1) sec^4 x + sec^2 x tan^2 x - 2 tan^4 x = ?...
Mathematics, 18.07.2020 04:01 brisamauro27
Complete the identity.
1) sec^4 x + sec^2 x tan^2 x - 2 tan^4 x = ?
Answers: 3
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