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In Mathematics / High School | 2014-11-07

What is the smallest positive value of \( x \) for which \( y = \cos(3x) \) has a minimum value?

Asked by MojoJojo

Answer (2)

The minimum is going to be at x = π /3 . This is because since the domain is x>0, the minimum value for the smallest x will be at the bottom of the drop after f(0). The bottom of the drop would be found at this value.
(If you want a decimal value, it would be around 1.047)

Answered by Cam943 | 2024-06-10

The smallest positive value of x for which y = cos ( 3 x ) has a minimum value is 3 π ​ . This occurs when 3 x = π .
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Answered by Cam943 | 2024-12-26