What is the principal value cost of cos−1 (0.69)

1 answer:

6 0

We are asked to find the principal value of
cos ⁻¹ (0.69)
which is just the least positive angle
cos ⁻¹ (0.69) = 46.37°
Other values of
cos ⁻¹ (0.69) is
46.37° - 180° n
where n is a whole number

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What is the principal value cost of cos​−1 ​(0.69)

What is the principal value cost of cos−1 (0.69)