SOLUTION: arccos(x)=arccos(x/2)
Solve for x, please
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Question 985633: arccos(x)=arccos(x/2)
Solve for x, please
Answer by ikleyn(52804) (Show Source): You can put this solution on YOUR website!
Let = and = .
Then = and = .
Since = by the condition, it implies that
= .
It is possible only if = .
Answer. x = 0.
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