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Australopithecus
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use the identity to figure it out
sin cos tan
csc sec cot
I just remember SOH CAH TOA, then just write csc under neath to remember the identities
so
sec(x) = 1/cos(x)
know how to solve now?
cory_ryan
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let me try
Australopithecus
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sec(5pi) = 1/cos(5pi)
your problem is exactly the same
cory_ryan
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-1
Australopithecus
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that is wrong
cory_ryan
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how do i solve it?
Australopithecus
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sec(pi/5) = 1/cos(pi/5)
Australopithecus
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\[\sec(\pi/5) = \frac{1}{\cos(\pi/5)}\]
Australopithecus
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That is the answer you can easily type it into your calculator to find the answer now
cory_ryan
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ok, thanks