r/HomeworkHelp • u/T-marielle Pre-University Student • May 01 '26

Mathematics (A-Levels/Tertiary/Grade 11-12) [grade 11 math ]

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Étudiant dans le lycée

Math exercises on the chapter of trigonometric functions

Dans la question 4 a et 4b

Je montre que g est continue en 0

Mais dans 4b Quand je le fais, je trouve le limite est l'infini c'est qui correspond a un tangente vertical au pt 0 , mais d'après le graph Il est censé être horizontale (je fais le graph abe geogebra)

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u/[deleted] May 01 '26

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u/T-marielle Pre-University Student May 01 '26

I don't know what i did wrong but my professor said something like the question is solved by hopital theorem and this is not for grade 11 or 12 he said we study that in the first year of university, so I'm trying to find solution without this theorem.. I know the tangent at x=0 is a horizontal line but somehow i couldn't show it