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Mathematics
Mathematics
Problem
Number of values of
x
x
x
satisfying the equation
cos
(
3
arccos
(
x
−
1
)
)
=
0
\cos(3 \arccos(x-1)) = 0
cos
(
3
arccos
(
x
−
1
))
=
0
is equal to a. 0 b. 1 c. 2 d. 3
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