1
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Təsəvvür edin ki, küçədə sizlə qarşılaşıram

2
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və sizdən sin pi/4 ifadəsinin

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qiymətini soruşuram.

4
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Burada radianlardan bəhs edirik.

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Buraya vahid çevrə

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çəkə bilərik.

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Bu çevrə o qədər də yaxşı görünmür,

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amma işimizə yarayacaq.

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pi/4 radian ifadəsi

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45 dərəcəyə bərabərdir.

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Buraya vahid radius çəkək.

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Vahid çevrədə sinus y koordinatı ilə

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təyin edilir.

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Odur ki, buradakı qiyməti bilmək
yaxşı olardı.

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Buraya baxaraq deyə bilərik ki,

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bu 45 dərəcədir.

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Gəlin üçbucağı bir qədər böyük çəkək.

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Üçbucaq belə görünür.

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Bu 45-dir.

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Bu da 45-dir.

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Bu isə 90-dır.

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45-45-90 ölçülü bir üçbucaqdır.

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Hipotenuz 1-dir.

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Bu x-dir.

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Bu da x-dir.

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Onlar bir-birinə bərabərdir.

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Bu bərabəryanlı üçbucaqdır, düzdür?

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Onun iki bucağı bərabərdir.

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Burada x kvadratı + x kvadratı 1kvadratına,

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yəni 1-ə bərabərdir.

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2x kvadratı = 1.

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x kvadratı = 1/2.

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x = kökaltında 1/2, yəni 1 böl kökaltında 2-ə

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bərabərdir.

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Bunu kökaltında 2/kökaltında 2-ə vurmaqla

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rasional formada yaza bilərik.

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Bu zaman x = kökaltında 2 böl 2 alınacaq.

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Belə ki, buradakı hündürlük kökaltında 2 böl 2-ə
bərabərdir.

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Buradakı məsafə də həmçinin

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eyni qiymətə bərabərdir.

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Ancaq bizə sadəcə hündürlük lazımdır.

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Çünki sinus qiyməti buradakı

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hündürlüyə bərabərdir.

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Y koordinatına.

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Həmin qiymət kökaltında 2 böl 2-dir.

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Bunların hamısını nəzərdən keçirmişik.

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Bunu vahid çevrə videosunda öyrənmişdik.

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Təsəvvür edin ki, bir gün

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sizdən kökaltında 2 böl 2 ifadəsinin

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arksinusunu soruşuram.

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Arksinus nədir?

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