Question 1142282
.
simplify
tan^2x+secx-1/secx-1
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Be aware: the "solution" of @josgarithmetic is TOTALLY INADEQUATE,


since he simplifies the formula DIFFERENT from the given in the condition.




Next. Please read the following VERY ATTENTIVELY.


<pre>
Your formula is <U>ambigous</U>.


It can be read as  


    (tan^2x+secx-1)/(secx-1),   or  as


    tan^2x + (secx-1)/(secx-1),  or as


    tan^2x + secx - (1/secx-1),  or  as


    tan^2x + secx - (1/secx) - 1


and, probably, by many other ways.


To avoid ambiguity, use PARENTHESES to clearly and explicitly show which part of your formula

is the numerator and which part is denominator.
</pre>

When you post the formula correctly presented, we, the tutors of this forum, will provide the correct solution.