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14.5.11. y = arctg x (ðèñ. 14.19).<br />

Ðèñ. 14.19<br />

14.5.12. y = arcctg x (ðèñ. 14.20).<br />

Ðèñ. 14.20<br />

14.6. ÎÑÍÎÂͲ ÌÀÒÅÌÀÒÈ×Ͳ<br />

ÏÎÇÍÀ×ÅÍÍß<br />

≈<br />

Íàáëèæåíî äîð³âíþº<br />

|a|<br />

Ìîäóëü (àáñîëþòíà âåëè÷èíà)<br />

sgn a Çíàê à<br />

∀<br />

Äëÿ áóäü-ÿêîãî (äëÿ êîæíîãî)<br />

∃<br />

²ñíóº<br />

⇔<br />

гâíîñèëüíî, òîä³ ³ ò³ëüêè òîä³, âèïëèâàº<br />

â îáèäâà áîêè<br />

⇒<br />

Âèïëèâàº<br />

∈<br />

Íàëåæèòü<br />

∉<br />

Íå íàëåæèòü<br />

X ⊂ Y Ìíîæèíà X º ï³äìíîæèíîþ Y<br />

X ⊄ Y Ìíîæèíà X íå º ï³äìíîæèíîþ Y<br />

∅<br />

Ïîðîæíÿ ìíîæèíà<br />

∪<br />

Îá’ºäíàííÿ ìíîæèí<br />

∩<br />

Ïåðåð³ç ìíîæèí<br />

~ Åêâ³âàëåíòí³ñòü, ïîä³áí³ñòü<br />

>, < Á³ëüøå, ìåíøå<br />

≥<br />

Á³ëüøå àáî äîð³âíþº<br />

≤<br />

Ìåíøå àáî äîð³âíþº<br />

∨<br />

ijç’þíêö³ÿ<br />

∧ (&) Êîí’þíêö³ÿ<br />

a<br />

Íå à<br />

log a b Ëîãàðèôì ÷èñëà b çà îñíîâîþ a<br />

lg b Äåñÿòêîâèé ëîãàðèôì ÷èñëà b (a = 10)<br />

ln b<br />

Íàòóðàëüíèé ëîãàðèôì ÷èñëà b<br />

(a = e = 2,71828...)<br />

max Ìàêñèìóì<br />

min<br />

̳í³ìóì<br />

Êâàäðàòíèé êîð³íü<br />

n<br />

Êîð³íü n-ãî ñòåïåíÿ<br />

sin a Ñèíóñ a<br />

cos a Êîñèíóñ a<br />

tg a Òàíãåíñ a<br />

ctg a Êîòàíãåíñ a<br />

sec a Ñåêàíñ a<br />

cosec a Êîñåêàíñ a<br />

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