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Math Help - quick derivative help

  1. #1
    Newbie
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    Feb 2010
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    quick derivative help

    g(t)= 4sec(t) + tan(t)

    when finding d/dx g(t), is the derivative of
    4sec(t)
    0(tan x) = 0?

    or am i doing that wrong?
    thanks in advance
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  2. #2
    Member mathemagister's Avatar
    Joined
    Feb 2010
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    Quote Originally Posted by ExCaLiBuR View Post
    g(t)= 4sec(t) + tan(t)

    when finding d/dx g(t), is the derivative of
    4sec(t)
    0(tan x) = 0?

    or am i doing that wrong?
    thanks in advance
    I think you are getting confusing with something else. I don't see where you got the 0 from...

    \frac{d}{dx}g(t) = 4\sec(t)\tan(t) + sec^2t

    You could factorize the sec(t) if you wanted to.
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