Hi, would someone please tell me how to differentiate sec^2 x? I tried it and got (-4sin2x)/(cos2x+1)^2 Not sure if that is right tho xxx
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Originally Posted by curlywurlysqurly Hi, would someone please tell me how to differentiate sec^2 x? I tried it and got (-4sin2x)/(cos2x+1)^2 Not sure if that is right tho xxx differentiate? Dx[sec^2 x] = 2(sec x)(sec x tan x) = 2(sec^2 x)(tan x) you just nid to apply chain rule.
sorry but i don't understand how you did that!!! where did the tan x come from???
Do you know what chain rule is? To take its derivative, we use So, Does that make sense?
yea thats all fine, but how do u differentiate sec x? is it just a standard result or is there some way to do it?
You know that Now So,
okay thanks i get it now! thankyou all for your help!!!! xxx
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