Question

tan^2x/sec x+1= ?

Answer 1

What are the instructions for this problem, Leticia?
It took some thought to realize that you probably meant \[\frac{ \tan ^{2}x }{ (\sec x + 1) }. \] If you use Equation Editor (see button below), it's easier to read and understand the expression. If you'd rather not use Equation Editor, then please enclose that sec x + 1 within parentheses, as I have.

Now, on to a solution: Look for an identity for (tan x)^2, and use it to re-write
\[\frac{ \tan ^{2}x }{ \sec x + 1 }\]in an equivalent alternative form. Factor the resulting numerator. Cancel as appropriate.

Answer 2

Thank you so much, that makes more sense, sorry for the confusing error, I'm still getting used to this website, thank you again, you helped a lot!

Answer 3

that makes me very happy. Thank you!