Mathematics: Select the angle that correctly completes the law of cosines for this triangle, 52 + 132 – 2(5) (13)cos — = 122 67° 13 5 23° 90° 12 А. 180° В. 67° оооо С. 90° D. 23°

Select the angle that correctly completes the

Ответ:

joelpimentel

20.10.2021

Mathematics

○ B. $\displaystyle 67°$

Step-by-step explanation:

$\displaystyle c^2 + b^2 - 2cb\:cos∠A = a^2$

In the EDGE formula of the Law of Cosines, whatever squared edge term is on the outside of the equivalence symbol, its angle measure is what you write next to the trigonometric function, if you understand the formula written above.

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Ответ:

tyneshiajones124

10.05.2023

Mathematics

Step-by-step explanation:

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Select the angle that correctly completes the law of cosines for this triangle, 52 + 132 – 2(5) (13)cos — = 122
67°
13
5
23°
90°
12
А. 180°
В. 67°
оооо
С. 90°
D. 23°

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