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# Find the arc length for x4 l y: 75+; forlsxs9 3. Find the arc length for x(t) = 30030), yo) = 43in&quot;) for 0 5 Is 231:

use calculator and appropriate identities to evaluate function below. thank you in advance

a) cos^-1(-0.5)

b)

2. Find the arc length for x4 l
y: 75+; forlsxs9 3. Find the arc length for x(t) = 30030), yo) = 43in“) for 0 5 Is 231:

a) ﻿ cos ​ − 1 ​ ​ ( − 0 . 5 ) = 1 2 0 ​ ∘ ​ ​ ﻿ or... View the full answer

• bornyto
• Jun 09, 2018 at 4:14pm
• The inverse function of y=cos(x) is the function x=cos^-1(y), so if cos(120°)=-0.5 then cos^-1(-0.5)=120° is fulfilled.
• mperez900
• Jun 09, 2018 at 6:10pm

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