Question about Texas Instruments TI-84 Plus Calculator
I'm a calculus student trying to get around a domain error. I understand cos^-1 general domain is -1
If you're in the MATHPRINT mode, press
2ND [COS^-1] ( 8 - 3 2ND [sqrt] 2 1 right-arrow ) / 2 5 ENTER
If you're in the CLASSIC mode, press
2ND [COS^-1] ( 8 - 3 2ND [sqrt] 2 1 ) ) / 2 5 ENTER
In either case you should get an answer of about 103.
Posted on Apr 27, 2013
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Posted on Jan 02, 2017
SOURCE: Trigonometry, my calculator says domain error when I press; cos-1(26^2+14^2-32^2/2*26*14) I change it into degree, but it doesn't help.. Can anybody tell me why it doesn't give me the exact an
Domain errror meaning that an argument must be in a specified domain.
It's not clearly what do you want to do but for three possible options solutions are on the captured images below(for radian mode).
Posted on Feb 23, 2013
SOURCE: "Err: Domain"
I think you may find arcsin(x) is equivalent in older nomenclature to sin^-1 (x)...ie use the "2nd" and the SIN key instead of typing arcsin.
eg. arcsin(0.5) is 30 degrees is the same as sin^-1(0.5)
The ^-1 does not mean reciprocal, but "the angle whose sin is." Here the minus one indicates a kind of inverse operation. The word arcsin indicates that same inverse.
Posted on Mar 05, 2010
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