trigonometric derivatives

label Calculus
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find the derivative of f(x)=sec(x^4)

May 23rd, 2015

 the derivative of f(x)=sec(x^4)
f '(x)=4. x^3 sec(x^4) tan(x^4)
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May 23rd, 2015

how do you get the first part of the answer -- sec(x^4) tan (x^4)

May 23rd, 2015

its the formula .. that differentiation of secx is sec x tan x ..

May 23rd, 2015

So secxtanx(x^4) is the same thing? I had that rather than sec(x^4) tan (x^4), I just want to make sure

May 23rd, 2015

but you have to multiply the differential of x^4 i.e. 4x^3  too.. that will complete the differentiation of sec (x^4)

May 23rd, 2015

Yes I have the second part I just wanted to make sure the first part was correct either way. Thank you!

May 23rd, 2015

You are most welcome! Feel free to ask questions in math and physics in future. I will feel happy to assist you.

May 23rd, 2015

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May 23rd, 2015
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May 23rd, 2015
Jun 25th, 2017
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