Find, correct to the nearest degree, the three angles of the triangle with the given vertices....

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Find, correct to the nearest degree, the three angles of the triangle with the given vertices. A(1, 0, -1), B(4, -4, 0), C(1,

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Answer 1

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A (1,0,-1), B(4,-4,0), 3(1,2,5) 1 A B = {4-1,-4-0,0-(-1)) - (3,-4,1) B с BT - -(1-4, 2-1-4), 5-0) = (-3,6,5) ĀC = (1-1, 2-0, COSO -9-24 ts √26 70 -28 COSO - 1820 OP arc cos Because the direction BT is pointing relative to Ã this is -$1820 the angle o

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