Vektorlar haqida tushuncha. To’g’ri chiziqning kesmalarga nisbatan tenglamasi


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74 .у = 5х + 7 ва у = to’g’ri chiziqlar orasidagi burchakni toping.

75. Sistemani Kramer usulida yeching



76 . A(3;4) nuqtadan 5x+12y-15=0 to’g’ri chiziqqacha bo’lgan masofani toping.



77. A(6;4) nuqtadan 2x+12y-15=0 to’g’ri chiziqqacha bo’lgan masofani toping.
78 . tenglamalar sistemasini yeching.

79. A(4;5) nuqtadan 5x+12y-15=0 to’g’ri chiziqqacha bo’lgan masofani toping.


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