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Asked by ken

find dy/dx for y=arctan(x/2)
i'm getting 4/(x^2+4)

my friend is getting 2/(4+x^2)

could someone point me in the right direction?

tahnk you
12 years ago

Answers

Answered by MathGuru
Your friend may be right.

Check this:

dy/dx = (1/2)/[1 +(x/2)^2] = 2/(4 + x^2)
12 years ago
Answered by ken
Drat.

thank you
12 years ago

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