Trig
posted by Kay .
establish identity
sec 0/1 + sec0 = 1  cos0/sin^2 0

Trig 
drwls
Do you mean sec 0/(1 + sec 0) ?
On the right side,do you mean
(1  cos 0)/sin^2 0?
You need to use parentheses to make your equations unambiguous.
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