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Nuetrik [128]
2 years ago
13

Can someone help me on this?

Mathematics
1 answer:
Mnenie [13.5K]2 years ago
5 0

Answer:

Step-by-step explanation:

We know that cosx = sin(\pi - x)

We can apply it here:

sin(55°) = cosx

cos(\pi - 55°) = cosx

Now we apply the arccos to both sides:

x = \pi - 55° + 2k\pi or x = -\pi - 55° + 2k\pi

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