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wel
3 years ago
15

Find all solutions of the equation in the interval [0°, 360°). cos(x) = -1 ​

Mathematics
1 answer:
nika2105 [10]3 years ago
7 0

Answer:

180°

Step-by-step explanation:

cos(x) = - 1 has only 1 solution in the required interval , that is

x = cos^{-1} (- 1) = 180°

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Step-by-step explanation:

To solve an equation, we can only have one variable. In this case, we are given the system 2x = 5y + 14. However, we are given the value of x in terms of y. We can substitute 10y in for 2x and solve.

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