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#1 2005-07-28 09:00:38

mewhoexactlywhat
Member
Registered: 2005-07-28
Posts: 1

Relation between: inv, arc, co, arcco??

Can anyone tell me what the difference is, if any, between inverse _, arc_, co_, and _^-1, when refering  to any of the trigonometric ratios? Also, what would arcco_, and inverse co_ refer to? Thank you.

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#2 2005-07-28 16:31:30

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,969

Re: Relation between: inv, arc, co, arcco??

That is neatly explained.
Both Sin-¹x and Arcsin x are one and the same, and both are in use in Mathematics Textbooks.
To make things simple, if Sin x = 1/2,
it follows that                  Sin -¹(1/2) = x
or                                 ArcSin(1/2)  = x


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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