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olya-2409 [2.1K]
3 years ago
13

Which trigonometric functions are equivalent to cos ∅. There must be only 2 selections no more no less !

Mathematics
1 answer:
oksian1 [2.3K]3 years ago
5 0

Answer:

cos(theta+2π) and -cos(-theta)

Step-by-step explanation:

theta plus 2π have the same cosine output as theta on a graph.

the negative cosine of negative theta is equal to the positive cosine of positive theta.

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