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08-03-2024
Mathematics

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The exact values of each expression are as follows: (a) cos⁻1(2/2) = cos⁻1(1) = π/3, (b) cos⁻1(1) = 0, (c) cos⁻1(-(2/2)) = cos⁻1(-1) = π.
a. 455
b. 365
c. 560
d. 625

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