WEBVTT 00:00:00.340 --> 00:00:03.360 Təsəvvür edin ki, küçədə sizlə qarşılaşıram 00:00:03.360 --> 00:00:07.450 və sizdən sin pi/4 ifadəsinin 00:00:07.450 --> 00:00:11.710 qiymətini soruşuram. 00:00:11.710 --> 00:00:14.950 Burada radianlardan bəhs edirik. 00:00:14.950 --> 00:00:17.510 Buraya vahid çevrə 00:00:17.510 --> 00:00:19.920 çəkə bilərik. 00:00:19.920 --> 00:00:21.360 Bu çevrə o qədər də yaxşı görünmür, 00:00:21.360 --> 00:00:23.080 amma işimizə yarayacaq. 00:00:23.080 --> 00:00:26.960 pi/4 radian ifadəsi 00:00:26.960 --> 00:00:29.760 45 dərəcəyə bərabərdir. 00:00:29.760 --> 00:00:31.840 Buraya vahid radius çəkək. 00:00:31.840 --> 00:00:35.130 Vahid çevrədə sinus y koordinatı ilə 00:00:35.130 --> 00:00:36.250 təyin edilir. 00:00:36.250 --> 00:00:38.910 Odur ki, buradakı qiyməti bilmək yaxşı olardı. 00:00:38.910 --> 00:00:40.210 Buraya baxaraq deyə bilərik ki, 00:00:40.210 --> 00:00:42.630 bu 45 dərəcədir. 00:00:42.630 --> 00:00:45.530 Gəlin üçbucağı bir qədər böyük çəkək. 00:00:45.530 --> 00:00:47.530 Üçbucaq belə görünür. 00:00:47.530 --> 00:00:49.210 Bu 45-dir. 00:00:49.210 --> 00:00:50.900 Bu da 45-dir. 00:00:50.900 --> 00:00:53.790 Bu isə 90-dır. 00:00:53.790 --> 00:00:57.330 45-45-90 ölçülü bir üçbucaqdır. 00:00:57.330 --> 00:00:59.040 Hipotenuz 1-dir. 00:00:59.040 --> 00:00:59.960 Bu x-dir. 00:00:59.960 --> 00:01:00.640 Bu da x-dir. 00:01:00.640 --> 00:01:01.930 Onlar bir-birinə bərabərdir. 00:01:01.930 --> 00:01:04.920 Bu bərabəryanlı üçbucaqdır, düzdür? 00:01:04.920 --> 00:01:06.960 Onun iki bucağı bərabərdir. 00:01:06.960 --> 00:01:10.690 Burada x kvadratı + x kvadratı 1kvadratına, 00:01:10.690 --> 00:01:12.960 yəni 1-ə bərabərdir. 00:01:12.960 --> 00:01:15.200 2x kvadratı = 1. 00:01:15.200 --> 00:01:17.440 x kvadratı = 1/2. 00:01:17.440 --> 00:01:20.840 x = kökaltında 1/2, yəni 1 böl kökaltında 2-ə 00:01:20.840 --> 00:01:22.780 bərabərdir. 00:01:22.780 --> 00:01:25.960 Bunu kökaltında 2/kökaltında 2-ə vurmaqla 00:01:25.960 --> 00:01:27.330 rasional formada yaza bilərik. 00:01:31.230 --> 00:01:34.950 Bu zaman x = kökaltında 2 böl 2 alınacaq. 00:01:34.950 --> 00:01:38.770 Belə ki, buradakı hündürlük kökaltında 2 böl 2-ə bərabərdir. 00:01:38.770 --> 00:01:40.400 Buradakı məsafə də həmçinin 00:01:40.400 --> 00:01:41.710 eyni qiymətə bərabərdir. 00:01:41.710 --> 00:01:43.090 Ancaq bizə sadəcə hündürlük lazımdır. 00:01:43.090 --> 00:01:46.600 Çünki sinus qiyməti buradakı 00:01:46.600 --> 00:01:47.920 hündürlüyə bərabərdir. 00:01:47.920 --> 00:01:49.180 Y koordinatına. 00:01:49.180 --> 00:01:52.960 Həmin qiymət kökaltında 2 böl 2-dir. 00:01:52.960 --> 00:01:53.890 Bunların hamısını nəzərdən keçirmişik. 00:01:53.890 --> 00:02:00.210 Bunu vahid çevrə videosunda öyrənmişdik. 00:02:00.210 --> 00:02:02.290 Təsəvvür edin ki, bir gün 00:02:02.290 --> 00:02:08.850 sizdən kökaltında 2 böl 2 ifadəsinin 00:02:08.850 --> 00:02:14.820 arksinusunu soruşuram. 00:02:14.820 --> 00:02:16.190 Arksinus nədir? 00:02:16.190 --> 00:02:16.970 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