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Home Q & A Board Science-Related Homework Help Mathematics
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tontron tontron
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11 years ago
I got as far as using the quotient rule then using the chain rule to expand out but then do i just leave it there?
(-2cosxsinx)/(cos^2x)^2                  <--thats how far i got
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wrote...
#1
11 years ago
Use chain rule,
(sec^2x)' = 2(secx) (secx tanx) = 2sec^2x tanx
----------
Ideas: (secx)' = secx tanx
wrote...
#2
11 years ago
[sec (x)]^2 =
2sec (x) sec (x) tan (x)=
2 tan(x) [sec(x)]^2
wrote...
#3
11 years ago
you mean... (sec x )^2? if it is then....

2sec(x). sec(x)tan(x)
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