SOLUTION: Hello, consider the function {{{f(x)=(5/2)cos(2x-(pi/2))}}}. For what values of k will the equation f(x)=k have no solutions?

SOLUTION: Hello, consider the function {{{f(x)=(5/2)cos(2x-(pi/2))}}}. For what values of k will the equation f(x)=k have no solutions?

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Question 979655: Hello, consider the function . For what values of k will the equation f(x)=k have no solutions?
Answer by ikleyn(52781) (Show Source): You can put this solution on YOUR website!

For > the given equation has no solutions ( for k > and for k < ).

For all other values of k the equation has at least one solution.

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