3 years ago

ℜ 0, -180 is the same rotation as ℜ 0, 180. True False

Mathematics

1 answer:

neonofarm [45]3 years ago

8 0

Answer:

Step-by-step explanation:

The first rotation is clockwise, whereas the second is counterclockwise. We end up at the same point either way, and the trig functions are the same.

In summary, the final outcomes are the same, but the directions of rotation are different. For this reason: False

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2 years ago

Triangle ABC has side lengths a= 24, b= 40, and c= 55. What is the measure of angle C? 83.6° 116.2° 23.0° 40.7°

Harlamova29_29 [7]

<h3>Answer: 116.2°</h3>

Work Shown:

$c^2 = a^2 + b^2 - 2ab\cos(C)\\\\55^2 = 24^2 + 40^2 - 2*24*40\cos(C)\\\\3025 = 576 + 1600 - 1920\cos(C)\\\\3025 = 2176 - 1920\cos(C)\\\\3025 - 2176 = -1920\cos(C)\\\\849 = -1920\cos(C)\\\\-1920\cos(C) = 849\\\\\cos(C) = (849)/(-1920)\\\\\cos(C) \approx -0.4421875\\\\C \approx \cos^{-1}(-0.4421875)\\\\C \approx 116.243535748231^{\circ}\\\\C \approx 116.2^{\circ}\\\\$