![]() |
![]() |
#1 (permalink) |
Addict
|
Simplify trigonometric expression
This is for my sister. Seriously. I'm not in school, and when I was I took calc 2 after 1 year and a semester of no math at all, and not taking calc one at the college level, and I passed with a B without going to class. The thing is I don't learn things for a very long time. Bottom line is I'm real uptight and I don't want anyone to think I'm an idiot.
Simplify Sec2x-1 / secx-1 I'm sure this is simple. I got to 1/ sinxcotx - cot2x but i dont think I was actually going anywhere with that just kind of mutating the original expression the 2 is supposed to be an exponent if that aws confusing anyone, which i doubt it was |
![]() |
![]() |
#2 (permalink) |
Appreciative
Location: Paradise
|
The Sec^2 (x) -1 = (Sec(x)+1)*(sec(x)-1)
Thus you now have: ((sec(x)+1)(sec(x)-1))/(sec(x)-1) the (sec(x)-1) cancels out on bottom and top leaving you with: (sec(x)+1) That is the most straightforward way to do this problem I believe. Hope that helps... P.s. (the 2 being an exponent was very key to the problem, you probably should have emphasized that more, I was lucky I read the last line)(oh and I like paranthesies (obviously), they really help in math problems). |
![]() |
Tags |
expression, simplify, trigonometric |
|
|