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k0ka [10]
2 years ago
8

Please help quickly. thanks in advance​

Mathematics
1 answer:
sesenic [268]2 years ago
6 0

Answer:

a. sin 30* = sin 150*

b. sin 1* = sin 179*

a. cos 340* = cos 20*

b. cos 260* = cos 100*

Step-by-step explanation:

sine is symmetrical around x = 90*

cosine is symmetrical around x = 180*

* means degree sign of course.

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DerKrebs [107]

Answer:

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