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statuscvo [17]
2 years ago
8

use vectors to decide whether the triangle with vertices p(1,-3,-2), Q(2,0,4), R(6,-2,-5) is right-angled.

Mathematics
1 answer:
kupik [55]2 years ago
4 0
The direction vectors for the three sides are given by the differences in the vertices, not the vertices themselves. So consider the vectors
P−Q,P−R,Q−RP−Q,P−R,Q−Rand see whether any of these are orthogonal.
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Answer:

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Step-by-step explanation:

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Apply trigonometric function SOH:

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y = Sin^{-1}(0.2)

y = 11.536959° ≈ 11.54° (nearest hundredth)

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Answer:

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Step-by-step explanation:

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Which set of ordered pairs represents y as a function of X? a{(-9, 2), (0, 6), (1, -2), (-3, 6)} b{(-1,0), (4, 3), (-7, -3), (-1
olga nikolaevna [1]
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Explanation:

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