WEBVTT

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အကယ်ရွေ့များကျွန်တော်သင့်ကို
လမ်းမှာတွေ့လို့

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(အထူကြီးမှားရေးမိတယ်)

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ပိုင်(pi)အစား၄ရဲ့ဆိုင်း(sin)
ကဘာလဲလို့မေးရင်

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သင်ကradianသုံးရမယ်လို့ထင်မှာပေါ့

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သင်အလွတ်မှတ်ထားရင်မှတ်မိမယ်
ဒါမှမဟုတ်

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ဒီလိုစက်ဝိုင်းလေးဆွဲလိုက်မှာပေါ့

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အဝိုင်းဆုံးစက်ဝိုင်းတော့မဟုတ်ဘူး

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ဒါပေမဲ့သင်သဘောပေါက်ပါတယ်

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pi အစား ၄ radians က

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၄၅ဒီကရီနဲ့ညီမျှပါတယ်

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အချင်းဝက်မျဉ်းကိုဆွဲပြီး

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sin ကစက်ဝိုင်းတစ်ခုရဲ့

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y-ကိုသြဒီနိတ်(coordinate) ဖြစ်ပါတယ်

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ဆိုတော့သင်ကဒီတန်ဖိုးကိုယူမယ်ဆိုရင်

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သင်ကချက်ခြင်း ok

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ဒါက ၄၅ဒီကရီလို့ပြောလို့ရတာပေါ့

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ကျွန်တော်ဒီတြိဂံကိုအကြီးချဲ့လိုက်မယ်

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တြိဂံကဒီလိုဆိုရင်

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ဒါက ၄၅ဒီကရီ

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ဒါက ၄၅ဒီကရီ

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ဒါက ၉၀ဒီကရီ

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ဒါဆိုသင်က ၄၅-၄၅-၉၀ တြိဂံကို
အဖြေရှာလို့ရပြီ

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ဟိုက်ပိုတန်းနယုစ်(hypotenuse)က ၁

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ဒါက x

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ဒါက x

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သူတို့နှစ်ခုကတန်ဖိုးတူတော့ 
isosceles traingle ပေါ့

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သူတို့နှစ်ခုကတန်ဖိုးတူတော့ 
isosceles traingle ပေါ့

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အခြေခံထောင့်ကတူတယ်

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ဒါဆို x နှစ်ထပ်အပေါင်း x နှစ်ထပ်က ၁ နှစ်ထပ်

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၁ နှစ်ထပ်က ၁

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2x နှစ်ထပ်က ၁

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x နှစ်ထပ်က ၁ အစား ၂

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x က ၁ အစား ၂တို့ရဲ့
နှစ်ထပ်ကိန်းရင်း(square root)

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ဒါက ၁ အစား၂ရဲ့နှစ်ထပ်ကိန်းရင်း(square root)

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ရာရှင်နယ်(rational)နံပတ်ပြောင်းရေးဖို့

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၂-square root အစား၂-square rootနဲ့မြှောက်ရင်

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၂-square root အစား၂ရတာပေါ့

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ဒါဆိုအမြင့်က ၂-square root အစား၂

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ဒီအတိုင်အတာပါသိချင်တယ်ဆိုရင်

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အတူတူပဲ

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ဒါပေမဲ့ကျွန်တော်တို့ကအမြင့်ပဲလိုချင်တယ်

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ဘာလို့လဲဆိုတော့ဒီ sin တန်ဖိုးကြောင့်

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ဒီ sin တန်ဖိုးကအမြင့်ရဲ့တန်ဖိုးပဲ

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y-coordinateပေါ့

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ဒါကိုခုနက၂-square root အစား၂
လို့သိထားတယ်

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ဒါကပြန်လေ့လာတာပါ

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စက်ဝိုင်းဗီဒီရိုတုန်းကသင်ပြီးသား

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ဒါပေမဲ့အကယ်ရွေ့များကျွန်တော်က

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သင့်ကိုနောက်နေ့ကျလို့

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၂-square root အစား၂ ရဲ့ arcsin ကဘာလဲလို့မေးရင်

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arcsin ကဘာလဲ

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သင်တုန့်ဆိုင်းသွားမလား

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သင်က ထောင့်တစ်ခုရဲ့sinတော့သိတယ်

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ဒီဟာက ဆဲလ် အသစ်ထွင်ထားတဲ့trigonometry

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သင်သိထားရမှာကအရှေ့မှာarcဆိုတဲ့စကားလုံးပါလာရင်

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တစ်ခါတစ်လေ inverse (ပြောင်းပြန်) sin

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လို့လဲခေါ်တယ်

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သင်ကဒါကို ၂-square root အစား၂ ရဲ့

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sin ပြောင်းပြန်လို့ရေးလို့ရတယ်

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သူက sinရဲ့ဘယ်ထောင့်ကိုယူရင်

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၂-square root အစား၂ ရမလဲလို့မေးတာ

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ဒါလည်းသူက sinရဲ့ဘယ်ထောင့်ကိုယူရင်

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၂-square root အစား၂ ရမလဲလို့မေးတာ

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ကျွန်တော်ကဒီနှစ်ခုကို

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(ပြောပြပရစေ)

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ကျွန်တော်ကဒီနှစ်ခုကို sinရဲ့ဘာက

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၂-square root အစား၂ ရမလဲလို့ပြောင်းရေးလို့ရတယ်

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ဒီလိုမေးရင်ဖြေရတာ

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ပိုမလွယ်ဘူးလား

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sinရဲ့ဘာက၂-square root အစား၂လဲ

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