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Asked by Anonymous

Differentiate.
cos^-1 2x

10 years ago

Answers

Answered by bobpursley
is this arccos (2x)?

or do you mean 1/(cos 2x)
10 years ago
Answered by Steve
I think we can assume arccos.

If so, then recall that d/dx (arccos(u)) = -1/√(1-u^2) du/dx

Now just plug and chug.
10 years ago

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