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anonymous
 one year ago
(sec(x)+tan(x))((1sin(x))/cos(x))=1
anonymous
 one year ago
(sec(x)+tan(x))((1sin(x))/cos(x))=1

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JoannaBlackwelder
 one year ago
Best ResponseYou've already chosen the best response.1Use sinx/cosx=tanx

JoannaBlackwelder
 one year ago
Best ResponseYou've already chosen the best response.1And secx=1/cosx

LynFran
 one year ago
Best ResponseYou've already chosen the best response.1\[(\frac{ 1 }{ cosx }+\frac{ sinx }{ cosx })(\frac{ 1sinx }{ cosx })=1\]\[(\frac{ 1+sinx }{ cosx })(\frac{ 1sinx }{ cosx })=1\]\[\frac{ 1\sin ^{2}x }{ \cos ^{2}x }=1\]...now use the Pythagorean identity to simplify

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i have already done that. now what

JoannaBlackwelder
 one year ago
Best ResponseYou've already chosen the best response.1Solve the pythagorean identity for cos^2x and see what you get.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0how do you use the Pythagorean identity for cos^2x

JoannaBlackwelder
 one year ago
Best ResponseYou've already chosen the best response.1dw:1441075116078:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok i get it thank you

JoannaBlackwelder
 one year ago
Best ResponseYou've already chosen the best response.1You're welcome :)
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