<![CDATA[sin(x)^2+cos(x)^2->? as x->Infinity]]>
https://help.geogebra.org/topic/sinx2cosx2-as-x-infinity
Sun, 12 Apr 2020 21:42:28 +0000Sun, 12 Apr 2020 12:54:48 +0000Zend_Feed<![CDATA[Which GeoGebra app?]]>
https://help.geogebra.org/topic/sinx2cosx2-as-x-infinity#comment-279258
Sun, 12 Apr 2020 16:09:35 +0000<![CDATA[CAS, forgot to mention.]]>
https://help.geogebra.org/topic/sinx2cosx2-as-x-infinity#comment-279262
Sun, 12 Apr 2020 16:12:12 +0000<![CDATA[classic answer undefined also limit(simplify(),inf) says 1]]>
https://help.geogebra.org/topic/sinx2cosx2-as-x-infinity#comment-279266
Sun, 12 Apr 2020 16:37:34 +0000<![CDATA[What?]]>
https://help.geogebra.org/topic/sinx2cosx2-as-x-infinity#comment-279268
Sun, 12 Apr 2020 16:44:30 +0000<![CDATA[cos(x), sin(x), cos²(x), sin²(x), cos²(x) + sin²(x) all those function don't have a limit when x--->∞ It is not a GeoGebra error : GeoGebra give the good answer : undefined (good answer) : 1 is wrong answer if you simplify : Simplify(cos²(x) + sin²(x)) = 1 So limit(Simplify(cos²(x) + sin²(x))) = limit (1) = 1..!]]>
https://help.geogebra.org/topic/sinx2cosx2-as-x-infinity#comment-279274
Sun, 12 Apr 2020 20:24:38 +0000<![CDATA[Hm, maybe it should work without an explicit simplification command?]]>
https://help.geogebra.org/topic/sinx2cosx2-as-x-infinity#comment-279276
Sun, 12 Apr 2020 20:31:38 +0000<![CDATA[Hm, if at a mathematical exam you say : limit(cos²(x) + sin²(x))=1 when x-->∞ i say "why" and i don't give you 20/20]]>
https://help.geogebra.org/topic/sinx2cosx2-as-x-infinity#comment-279278
Sun, 12 Apr 2020 21:00:37 +0000<![CDATA[And I say "by the famous identity...", just one more step GeoGebra should take.]]>
https://help.geogebra.org/topic/sinx2cosx2-as-x-infinity#comment-279280
Sun, 12 Apr 2020 21:02:00 +0000<![CDATA[GeoGebra is a bad boy : he doesn't know famous identity phew Seriously : i am teacher and i am very happy when a machine force students to... think..! (and your example is a very good example... very instructive). We must give them critical mind... The machine should do everything perfectly ? so we don't have to think ? it is a point of view... Hope for you developers will do this...]]>
https://help.geogebra.org/topic/sinx2cosx2-as-x-infinity#comment-279284
Sun, 12 Apr 2020 21:29:32 +0000<![CDATA[So you'd accept a machine to be plain wrong instead of trying to fix it... nice approach man, nice approach, you'll definitely get a good sheeple out of it. Good luck...]]>
https://help.geogebra.org/topic/sinx2cosx2-as-x-infinity#comment-279286
Sun, 12 Apr 2020 21:30:41 +0000<![CDATA[i gave you (in my first post) my point of view (and i didn't insult you...) Good luck to you too man]]>
https://help.geogebra.org/topic/sinx2cosx2-as-x-infinity#comment-279288
Sun, 12 Apr 2020 21:42:28 +0000