skalyar ko‘paytma va burchak kosinusi
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слайд 1 co ,sa b a b a b a va b vektorlarning skalyar ko‘paytmasi deb, ularning modullari va ular orasidagi burchak kosinusi ko‘paytmasiga aytiladi. x x y y z za b a b a b a b koordinatalari berilgan a (ax , ay , az) va b (bx , by , bz) vektorlarning skalyar ko‘paytmasini quyidagi formula bilan topish mumkin: ikki vektor orasidagi burchakni topish formulasi : 2 2 2 2 2 2 ,cos x x y y z z x y z x y z a b a b a b a b a a a b b b …
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