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Anna007 [38]
2 years ago
6

This question is designed to be answered with a calculator.

Mathematics
1 answer:
Ierofanga [76]2 years ago
8 0

Answer:

0.451

Step-by-step explanation:

When you do cos^-1 0.9 ~ .451

You can’t add pi because you have an interval.

Hope this helps :)

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