How do you find the exact value of \cos^{-1}0

pierdoodsu 2021-12-16 Answered
How do you find the exact value of cos10
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Louis Page
Answered 2021-12-17 Author has 34 answers
Explanation:
cos1=arccos0
What is the arc which cosine is zero?: two posibilities 90=π2 and 270=3π2
This is assuming that cos1 is the inverse of cosine. There is no missunderstanding if use arccos instead of cos1 Because cos1 is also understud as 1cos=sec which is different
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Heather Fulton
Answered 2021-12-18 Author has 31 answers
The trig ratios are defined as ratios of side lengths of a right-angled triangle. cos is the adjacent side divided by the hypotenuse, i.e. the length of the short side next to the angle being considered divided by the length of the long side next to it that isnt
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