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- Thread starter paridiso
- Start date

- #1

- 17

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Thanks.

- #2

rock.freak667

Homework Helper

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No no.

Cot(x)=1/tan(x)

arctan(x)=tan^{-1}(x) [itex]\neq[/itex]1/tan(x)

Cot(x)=1/tan(x)

arctan(x)=tan

- #3

- 671

- 2

No no.

Cot(x)=1/tan(x)

arctan(x)=tan^{-1}(x) [itex]\neq[/itex]1/tan(x)

Just to clarify, that notation doesn't mean the multiplicative inverse in this context, but the inverse function.

[tex]tan(x)=y[/tex]

[tex]Arctan(y)=x[/tex]

With whatever restrictions are necessary so that those are functions and not just relations.

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