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5/6/2010 2:59:56 AM
6
Difference between cos^-1 and secant
- cos^-1 is the inverse of cos (1/cos)
and
- secant is also 1/cos
But my math teacher says they're different. What am I missing?
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cos(x)^-1 = cos(1/x) sec(x) = 1/cos(x)
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k thx
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[quote][b]Posted by:[/b] Smug Dark Loser inverse is a function where the x and y values are reversed. that isn't the same a 1/(function) Secant [url]http://home.windstream.net/okrebs/D5.gif[/url] Arccos [url]http://www.intmath.com/Analytic-trigonometry/arccosx.gif[/url][/quote]
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[quote][b]Posted by:[/b] Teh1337M3rksman so cos^-1 =/= 1/cos?[/quote] correct
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so cos^-1 =/= 1/cos?
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inverse is a function where the x and y values are reversed. that isn't the same a 1/(function) Secant [url]http://home.windstream.net/okrebs/D5.gif[url] Arccos [url]http://www.intmath.com/Analytic-trigonometry/arccosx.gif[/url] [Edited on 05.05.2010 7:04 PM PDT]
